Haldex clutch pump but i still dont have awd or esp on the Car. During this Haldex Service, we will also remov P 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent: P 02248 – Valve for Controlling Clutch Operating Angle (N373) – Defective: Repair or Replace Haldex ECU: P 02248 – Valve for Controlling Clutch Operating Angle (N373) – Intermittent: Replacing filter and oil is advisable: P 02248 – Valve for Controlling Clutch Operating Angle (N373) – 012 – Electrical 2. The Haldex fluid is G0601751MDSP along with o rings for the pump and new bolts. We did the VCDS test on the Haldex system and all The fourth generation does not have the mechanical pump any more. The car is going in for a service later this week and I'm in a Actuator diagnosis, four-wheel clutch (Haldex clutch) Closed; Actuator diagnosis, exit pump OFF The pump (V181) stops. Its job is to engage the rear axle the moment the computer senses traction loss at the front axle. Jump to Latest 9. The GEN 5 Haldex Coupling comes with an integrated Haldex Control Module and the Haldex Clutch Pump And Filter Change. 2 posts · Joined 2021 Add to quote; Only show this user #1 · Nov 9, 2021. Check motor mounts for wear or splitting. This is eithe P 16668 – Pump for Haldex Clutch C1112 07 [008] – Mechanical Failure Intermittent (from www. Service 1. Haldex Clutch for MQB AWD-G7R/TTS/TTRS/S3/RS3. The clutch is activated using the feeder pump. Replaced the ground strap/earth wire and tested the functioning of the rear wheels. Ford Kuga). 7 Injector Circuit High Input/Short to B+ (found here) Cleared the faults and the 16664 came back as soon as the engine was restarted. 4. Pump assembly removed and replaced pump assembly. I experienced a similar issue and got a fault code: Pump for Haldex Clutch, C1112 04 [008] - Internal System Fault, [Pump_motor_blocked]. Other related fault codes: 01155 – Clutch – 003 – Mechanical Failure – Intermittent 02248 – Valve for Controlling Clutch Operating Angle (N373) – 014 Defective Haldex controllers used on VW group 4 wheel drive systems provide outputs to the ECU for diagnostics (e. 5. The fluid extractor/pump is essentially a large syringe used to pump the new Haldex fluid into the system. g. 9. Haldex Generation III, IV, and V based all wheel drive systems are proactive. 8. Front wheels spinning, but no movement at all from rear wheels. A clutch feeder pump is a vital component of today's highly complex Haldex AWD drivetrain systems. 12 posts · Joined 2017 Add to quote; Only show this user #1 · Feb 28, 2018. eirwave Registered User. I just hit 112k miles this week, car has had 3 Haldex fluid changes in that time span, once at the dealer and twice I’d changed the haldex clutch oil before so was fairly familiar with the layout of the unit, and from some googling, this seems to be solved by either a: cleaning the small filter on the front of the haldex clutch pump (cost - 1L of haldex clutch oil) , or b: replacement of the pump entirely (1L of clutch oil, + 350 euro for a new pump) 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00101011 Fault Priority: 3 Fault Frequency: 1 Reset counter: 40 Mileage: 97258 km Time Indication: 0 Date: 2016. Fitment model guide (please ensure part is correct as dates may vary):- I've just scanned my 2010 Yeti with a view to changing the auto wiper behaviour and it flagged up a fault code on the Haldex. clb Part No SW: 0BR 907 554 A HW: 0BR 907 554 A Component: Haldex 4Motion 3016 Coding: 0000005 Shop #: WSC 00000 000 00000 VCID: 43D047E0579EF99F073-8016 1 Fault Found: 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00101011 Fault Priority: 3 How to do a proper MK7. Now, with quite a lot of snow in north east UK, I find that my front wheels are spinning on the snow,but rear ones are not. You'd need to clean out the system and change the pump to fix this component properly. Haldex Pump Failure: Very common; Requires new pump and clean of Haldex system including new oil and filter gauze; This is by far the most common issue you will see with the Haldex We also have a Gen 4 Pump Bundle Kit, which includes pump, oil and filter along with syringe, filling tube and gloves. Specs: Stock: 13 frictions 12 reaction plates . Add to basket. Cleared fault code and roadtested vehicle confirming Haldex system now working". 5 Golf R haldex Service. co. It's not listed on the Ross Tech Wiki and a general Google (there is nothing relevant on this forum that I can find) shows that it may be just the Haldex Clutch Pump (V181) that is causing the fault code. The Blockage parameter is a confusing one. I would expect 16668 not to return, since the pump has been replaced! 🤞 All-wheel-drive system: 00448 - Haldex Clutch Pump (V181) This has showed up in a recent scan of my Yeti, run after a number of TCS-triggering, front tyre scrabbling moments on greasy roads made me think that something might be amiss. New genuine hydraulic (ballast, cargo) oil pump from manufacturer Borgwarner with OEM number 0AY598549A for Haldex clutches of the 4th generation used in vehicles of the VW concern (Volkswagen, Audi, Skoda and Seat). Why should I service this? - Unlike differential oil, which lubricates; the Haldex oil is very specific and promotes friction between the faces of the multi-plate clutch setup. n n n View: Haldex Gear Pumps 10561 to 10567 Brocheure n. Jump to Latest 8K views 2 replies 3 participants last post by JK-VWTiguanR Nov 10, 2021. Before proceeding, confirm that the issue matches the Condition exactly. Important pump for keeping Haldex system working correctly Brand: ES#: 4715316 Mfg#: 0AY598549A I have a 2014 Tiguan, and at a regular service the mechanic discovered the system is showing a static fault with the Haldex Clutch Pump that cannot be cleared. g hooking it up to 12v works perfectly every time - Full fluid change and terminals cleaned. It did work for 4-5 minuttes before, i could drive and suddently the esp light came up and no awd. Couple of questions 1. How to do a proper MK7. Jump to Latest 1. During the Output test, the following measurement values are displayed: a) Oil pressure in the Haldex clutch b) Oil temperature in the Haldex clutch c) Power consumption, pump for Haldex clutch (V181) d) Power consumption 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit / Intermittent 00448 - Haldex Clutch Pump (V181) 002 - Lower Limit Exceeded However I did find this while wandering through the Ross Tech Forum - Possible Causes - • The Pump o-ring seals can leak, filling the motor with oil which seems to dissolve the brushes ruining the motor. Hi all, My Tiguan is only two-wheels driven as of now, and in an earlier thread (where I asked if a Rein OE Quality Haldex system clutch feeder pumps are a direct replacement for the original units and come complete with an oil filter, seal and mounting bolts. Rein OE Quality Haldex system clutch feeder pumps are a direct replacement for the original units and come complete with a seal and mounting bolts. It's actually the most ideal way to measure how "locked" the clutch is. However, I can only find Haldex clutch pump failure, 2008 Tiguan TSI. Most common fault code 00448 – Haldex The Fifth Generation Haldex All-Wheel Drive Coupling can be found on most of the high performance VAG vehicles produced between 2012-2021. Всичко, което трябва да знаеш за твоя Haldex диференциал gen5 и неговите най-чести проблеми са включени в тази кратка статия от Дас Ауто Сервиз 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent Well my much loved and trusty Superb 4x4 was in to the local Skoda dealer for its MOT last week and I happened to check my Carista app for faults and was disappointed to find code 00448 Haldex pump. 15 posts · Joined 2018 Add to quote; Only show this user #1 · Feb 4, 2019. 3 posts · Joined 2021 Add to quote; Only show this user #1 · Nov 9, 2021. Best Fixes for Pump Failure. Mick Now a proud owner of a 2021 T-Roc R 300 BHP DSG in white, Traded for a 2020 Tungsten Silver 2. I measured the resistance between the terminals and got ~0. Verified. All Activity; Home ; Škoda Owners Forums ; Škoda Yeti ; Skoda Yeti Guides Genuine car parts - for haldex system sets, oils, pumps and filters. CLUTCH OPERATION The operation of the Haldex Direct pressure clutch is as follows: The clutch flywheel ring (cover) is attached to the engine flywheel Oil pump with strainer gauze "Haldex Clutch Pump (V181)" Filter cartridge Pressure Accumulator (a piston with a spring which holds a pre charge pressure for instant demand) Oil Control solenoid "Valve for Controlling Clutch Operating Angle (N373)" A wet clutch pack like a motorcycle clutch, which is clamped together with a piston type actuator - The Haldex pump provides oil pressure, which actuates the clutches to bring in rear drive as and when the ECU requests it. Race: 15 frictions 14 reaction discs Street: 14 frictions and • DTC C111204 (Haldex clutch pump faulty) Technical Background There is an internal leak in the hydraulic pump. Also suitable for PTO pumps, machine tools, refuse haulers and compacting equipment. Just scanned with a vcds computer and it’s now throwing me up C1112 04 (haldex clutch pump, Faulty) I also found the paperwork for previous diagnostics in march and it gave the same code along with c1112 11 (haldex clutch pump, short circuit to ground) mmi Senior Expert. Noseve Verified VCDS User. Moderator. Haldex uses clutches so its more important to change the fluid every 30K miles, bevel box and rear diff you could probably go 50K-100K. The pump filter was full of ****, so i did clean it. pati610 Discussion starter. Why should I service this? - Unlike differential oil, which lubricates; the Haldex oil is very specific and promotes friction between P 16668 – Pump for Haldex Clutch C1112 07 [008] – Mechanical Failure Intermittent : Pump Fault : Replace Pump : P 16666 – Pump for Haldex Clutch C1112 13 [008] – Open Circuit: Pump Fault: Replace Pump + Check Wiring: C111307 – Mechanical Malfunction – Passive / Sporadic: typically, blocked pump, clean out and relearn or possible transfer box fault: Replace Pump & Transfer ----- Address 22: AWD Labels: 0AY-907-554-V1. What id like to know : A very specific question but how is the haldex pump monitored by the car? Just purchased OBDELEVEN. Ive been experiencing some problems with my Haldex also and was getting a fault code: 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent Symptoms of this were sporadic 4 wheel drive and alot of 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent. Joined Dec 31, 2023 Making a sharp exit from a wet junction a couple of weeks ago had the front wheels scrabbling for grip. 8T Gen3, Volkswagen Atlas Upgrade your vehicle's AWD system with the genuine BorgWarner 4th generation Pump, 111358 Filter, and high-performance oil kit. Replace the hydraulic pump according to the Elsa Repair Manual. Generation 1 Haldex Pump VW Audi 02D525557 TT R32 4Motion. 21 info@4x4parte. Generation 1 Haldex Pump VW Audi 02D525557 TT R32 4Motion Hi All - New to VCDS, although I've watched every video I can lay my hands upon relating to Haldex pump replacement, which job I shall be carrying out pretty soon. 14 Ex. The possible cause of the noise can be detected at first by disconnecting the connector on the haldex clutch pump or the ABS fuse. com Update Took the 3 to Stafford Audi today, it needs new Haldex Pump & new a new horn as well. I ordered a new pump, seals, and fluid and plan to replace it as soon as they arrive. Included in the kit is a bottle of the correct Volvo fluid, a can of brake clean, a new service plug, a Haldex pump seal kit, and a CTA Tools fluid extractor/pump. However, I can only find 16671 – Pump for Haldex Clutch – C1112 04 [008] Internal System Fault (faulty pump AND ecu needs repair) So I removed the pump, new oil, clean gauze and still same. Joined Sep 27, - The system operates using a wet multi-plate clutch setup, somewhat similar to that of most motorcycles. All these small heavy duty pumps - fuel pumps, ABS pumps, cabriolet roof pumps etc New original hydraulic pump from manufacturer Borgwarner with OEM number 0AV598549A for Haldex clutches of the 2nd generation used in vehicles of the VW Group (Volkswagen, Audi, Skoda and Seat). Just front wheels spinning. 16 Time: 09:04:15 I can clear the code but it comes back as soon as the car has been out on the road. I brought this to the dealer's attention and was advised that "code readers are unreliable and thr Checked faults with my OBD11 and sure enough I have a "Haldex clutch pump mechanical malfunction C111207" code active in the Haldex controller. A Volvo Haldex service kit from FCP Euro will cost around $120. 00448---Haldex Clutch Pump V181---Lower Limited Exceeded; 00448---Haldex Clutch Pump V181---Open Circuit/Defective; Note: Those of the fifth-generation the Haldex of been listed in a different section. P. Remove the Precharge Pump and the Haldex Controller; each is held by two screws. Common Faults. The electronics can pre-tension the clutch and activate all wheel drive before a wheel slip occurs. 2. JMR Professional User. It may have failed sometime previous without you being aware as Haldex faults rarely 00448 - Haldex Clutch Pump (V181) 014 - Defective - Intermittent 00003 - Control Module 014 - Defective - Intermittent 02248 - Valve for Controlling Clutch Operating Angle (N373) 014 - Defective - Intermittent . Such a fault indication could save considerable money otherwise spent on expensive 00448 Haldex clutch pump; 01324 All wheel controll module; i have checked all connectors, changed oil and filter on the haldex. N. HaldexRepairs. My Haldex pump failed after 5 years and 55K miles and had been serviced to the book by Audi so your pump would have been on borrowed time. I have a 2014 Tiguan, and at a regular service the mechanic discovered the system is showing a static fault with the Haldex Clutch The Haldex is an electro-hydraulic clutch that is located on the front (prop shaft side) of the rear differential. T. E. JMR The DF clutch is also similar to the DPB type clutch and differs only in that the DF is equipped with forged release levers. Production Solution Improved hydraulic pump. A bad or misaligned clutch will damage a water pump. This is what running the learn looks like when using the VCDS scope function when you have a Haldex coupling that is not pumping oil correctly. 0 review(s) £ 132. 0. I have a 2014 Tiguan, and at a regular service the mechanic discovered the system is showing a static fault with the Haldex 00448 - Haldex clutch pump Open circuit Intermittent Priority: 3 Frequency counter: 1 Driving cycle: 40 Mileage: 163263 km Date: 2022-06-03 17:49:26 Scan when I got to work 22 All Wheel Control System description: Haldex 4Motion Haldex . We did the VCDS test on the Haldex system and all When was the last time the Haldex got serviced, it could be a blocked filter or water ingress in the controller giving you these issues IMHO. 16671 – Haldex clutch pump Faulty – C1112 04 passive/sporadic (typically pump type fault) 16668 – Pump for Haldex Clutch C1112 07 [008] – Mechanical Failure Intermittent (typically pump type fault) C111307 – Mechanical Malfunction – Passive / Sporadic (typically blocked pump, clean out and relearn) Select “Output Tests – 03”, then keep clicking “Start / Next” until you see “Haldex Clutch Pump (V181) Activate”, then click again. 3. 00448 – Haldex Clutch Pump (V181) – 002 – Lower Limit Exceeded – Intermittent 01155 – Clutch – 003 – Mechanical Failure – Intermittent 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent 02248 – Valve for Controlling Clutch Operating Angle (N373) – 012 – Electrical Fault in Circuit 16668 Pump for Haldex Clutch C1112 07 [008] Mechanical Failure Intermittent (typically Pump fault) 16666 Pump for Haldex Clutch C1112 13 [008] Open Circuit(typically pump type fault) C111307 Mechanincal Malfunction Passive / Sporadic (typically blocked pump, clean out and relearn or transfer box) Carried out system diagnostics and found fault code stored V181 relating to Haldex clutch pump intermittent open circuit. 09tiguan83 Discussion starter. During this Haldex Service, we will also remov There's a cartridge for the Haldex and a plastic screen for the pump. Joined Oct 14, 2011 Messages 6 Reaction score 0 Points 1 Location NULL. Had a new Haldex clutch pump fitted 4 months ago. n The Haldex/Concentric high pressure hydraulic gear pump, with a displacement of . 03. 00448 – Haldex Clutch Pump (V181) – 002 – Lower Limit Exceeded – Intermittent; 01155 – Clutch – 003 – Mechanical Failure – Intermittent; 00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent; 02248 – Valve for Controlling Cheers Tufty, the clutch and gearbox center in Exeter do alot of haldex jobs and they're first thought is clutch in the diff, 170 notes to diagnose it so it'd be cheaper just to buy a diff, as long as esp isn't a problem I may have found one. . Quick View. Got the dreadful code, sporadic mechanical clutch failure. Jump to Latest 12K views 19 replies 8 participants last post by tricky May 25, 2022. Anyway, he put a clutch, discs all round, front shocks, inlet manifold [leak. The pump should run and you will see the current value (in amps) in the measure block increase 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit Freeze Frame: Fault Status: 01101011 Fault Priority: 3 Fault Frequency: 1 Reset counter: 168 Mileage: 44453 km Time Indication: 0 Date: 2017. 0 TDI DSG Rline Tech Full black leather with memory seats and electronic tow bar. The first two generations from 1998 purely reacted to the slip on the front wheels. Doing a Haldex service is easy, and only requires basic tools. 05. It's not listed on the Ross Tech Wiki and a general Google (there is nothing relevant on this forum It's not listed on the Ross Tech Wiki and a general Google (there is nothing relevant on this forum that I can find) shows that it may be just the Haldex Clutch Pump (V181) that is causing the fault code. Was advised to order a (expensive) replacement pump, or my car will only run on 2WD. The car is going in for a service later this week and I'm in a bit of a quandary about what's best to do. Place the assembly on a working surface so that the diff housing is at the bottom and the Haldex assembly is pointing vertically upwards. uk) 16664 - P0280 Cyl. Would the earth strap cause this as well or just the module? Is the module the one under the car (above the pump) Dec 23, 2021 #4 . VAT. Pump current will be identical to the PWM with some multiplier for actual current, not as user-friendly IMO. Also fluids which included Haldex [his suggestion as as just topped 120k] He did mention the This graph was of "IDE05708 Haldex clutch pump PWM signal" that I logged with VCDS (and plotted with Excel). I also highly recommend getting erWin or alldata to know 100% This Genuine Volkswagen Audi Haldex Service Kit - With Pump Seals (Mfg#g060175a3ktKT) fits Audi 8U Q3 Quattro, Audi 8V S3 Quattro, Audi A3 8V Quattro, Audi RS3, Volkswagen Alltrack 1. VCDS User. Drain the diff and Haldex oils; if the clutch packs have been damaged the Haldex oil is likely to be badly contaminated. The DF type is manufactured in the 13” single plate size. Haldex clutch pump failure) However unlike some other manufactures using Haldex controllers, a fault does not bring up a warning light on the dashboard (e. There'll be a need for an 16671 - Pump for Haldex Clutch C1112 04 [008] - Internal System Fault [Pump Motor - mechanisch defekt (mechanisch festgefahren)] Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 1 Fault Frequency: 2 Reset counter: 153 Mileage: 57819 km Date: 2021. Stuck for a few minutes on a slight hill, tried traction control switched to "OFF". When the ABS/TC/ESP ECU detects the front wheels are rotating faster than the rear wheels by the ABS wheel speed sensors, the Haldex ECU is told to The ABS control unit and the ECU now control when the multi-plate clutch is activated. - The Haldex pump provides oil pressure, which actuates the clutches to bring in rear drive as and when the ECU requests it. Engage Haldex Clutch Enable Haldex Clutch Functionality via Control Valve (N373) and Pump (V181)-Uwe- Jan 10, 2024 #14 . 09 Time: 06:42:19 haldex clutch pump. 3K views 1 reply 2 participants last post by TIGSEL Nov 9, 2021. If the noise ceases, it is not a mechanical fault, but an electrical one, where the pump is defective in 95% of cases, ABS sensor on the front right wheel is defective in 2% of cases, Control Unit of haldex clutch All-wheel-drive system 00448 Haldex Clutch Pump (V181) This has showed up in a recent scan of my Yeti, run after a number of TCS-triggering, front tyre scrabbling moments on greasy roads made me think that something might be amiss. Personally I plan to do it while changing the haldex fluid. Without getting too technical, a Haldex system consists of a hydraulic pump, a clutch and an electronic valve. For Ford, Audi, Land rover, Saab, Volkswagen, Skoda, Opel, Volvo, Seat, Opel, Vauxhall - Cleaning the filter on the haldex pump itself ( small amount of goo on there, nothing major) - Testing the pump outside of the car e. of Haldex air brake system components and accessories, refer to L20221 Aftermarket Warranty Policy. Googled the night away and decided a new pump, filter and oil change would be needed at a cost of £270 + just for the haldex clutch pump. they spun on the lift and not under load. 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00101011 Fault Priority: 3 Fault Frequency: 1 Reset counter: 37 Mileage: 99047 km Time Indication: 0 Date: 2017. tiguanacfume Discussion starter. For warranty returns, use the Warranty Adjustment The Haldex Aftermarket Quick Reference Catalog Actuators l Air Disc Brakes l Air Treatment/Airline l Air Valves Anti-Lock Brake Systems (ABS) l Brake Adjusters Clutches l Compressors l Electrical l Friction Remanufactured Products l Suspension Valves l Water Pumps Quality parts for vehicles at any life stage. Restore power to the rear wheels and enhance your ride's comfort. P 16668 – Pump for Haldex Clutch C1112 07 [008] – Mechanical Failure Intermittent : Pump Fault : Replace Pump : P 16666 – Pump for Haldex Clutch C1112 13 [008] – Open Circuit: Pump Fault: Replace Pump + Check Wiring: C111307 – Mechanical Malfunction – Passive / Sporadic: This is the commonly required repair kit for late 2008 till 2014 VW Audi Seat Skoda vehicles getting the “00448 – Haldex Clutch Pump (V181) – 011 – Open Circuit – Intermittent” fault. 0 out of 5. 24 Time: 10:17:09 I did a bit of desk research with the wiring diagram and discovered the Haldex pump motor shares the same fuse as another component. 17 / £ 110. everyone said egr but wasn't] few other things plus a 'donut' at the rear. Is there anyway of testing the haldex/pump output? I’m getting a lot of traction light flashing on brand new MP4 tyres. Professional VCDS User. Check fan clearances at blade tip between fan and shroud, and between fan and radiator. 23 Time: 11:36:18 Haldex Pumps; Haldex Pumps. I don’t need AWD, so wonder if I can avoid replacement. VIP Member. Compatible with various VAG VW, Yes - I can confirm the repair kit 0CQ-598-549 will work. clb Part No SW: 0BR 907 554 A HW: 0BR 907 554 A Component: Haldex 4Motion 3016 Coding: 0000005 Shop #: WSC 00000 000 00000 VCID: 43D047E0579EF99F073-8016 1 Fault Found: 00448 - Haldex Clutch Pump (V181) 011 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00101011 Fault Priority: 3 16671 – Pump for Haldex Clutch – C1112 04 [008] Internal System Fault (faulty pump AND ecu needs repair) So I removed the pump, new oil, clean gauze and still same. Finally got the pump replaced and tested in the rain the other day. Filled with new oil. Hey guys, so recently my wife’s Tiguan AWD system stopped working, got it scanned and it showed clutch pump 16671 – Pump for Haldex Clutch – C1112 04 [008] Internal System Fault OR ” C111204 Haldex Clutch Pump, Defective “ Deleted: The ISF (internal system fault) is caused when the pump is defective, but even when fitting a new pump you 00448 – Haldex Clutch Pump (V181) – 002 – Lower Limit Exceeded – Intermittent; VW/Audi - Gen 5 C111204 Haldex Clutch Pump, Defective; 16671 – Pump for Haldex Clutch – C111204 [008] 16668 – Pump for ----- Address 22: AWD Labels: 0AY-907-554-V1. In fact I recently had mine done and even though both filter kits were in a box on the floor of the passengers side at the time of the service, the technician was so used to not replacing them, he over looked the filters completely 1. Its job is to engage the rear axle the moment the computer senses traction loss at the 2. 4 ohms where I believe it should read closer to 5 ohms. 194 cubic inches, is ideal for use on equipment in the mobile, agricultural, construction, and mining industries. The Haldex control unit sends power to the Centrifugal Oil Pump based on the data processed by the ABS sensors and engine control data to access Haldex Pump. I also mentioned the steering wheel vibration at 70mph, they have a new wheel load balancing machine so I've had the wheels all balanced on this machine. 2K views 7 replies 5 participants last post by BigGav Mar 4, 2018. Thought nothing of it until I did an unrelatedVDS scan yesterday which flagged up fault code 00448 - Haldex clutch pump open circuit. 08. Showing 1–12 of 15 results. Audi it notorious for not replacing them. Carried out test plan for code which led to replacement of Haldex. nnafbiboueytmzxazcheoxouzahsztchueldxaafibivkdo