Audi & Volkswagen (VW) Bosch 5.3 ABS Pump & Controller ECU Common Faults & Repairs

Audi VW Volkswagen Passat ABS ECU

A very common fault on practically all VW’s & Audi’s is the ABS pump and controller module failing. We repair all types of ABS pumps & controller modules but this blog post in particular is about the very common Bosch 5.3 unit which is seen commonly failing on the following vehicles:

1996 – 2001 Audi A4, A6, S4
1996 – 2001 VW Passat

When it fails, the ABS light will appear on the dash and the most common faults with these units is no communication and wheel speed sensor faults. If that’s the problems you’re having then no doubt we can repair it for you, saving you £££’s on what you’d be paying if you had bought a brand new unit & because we’re repairing your own unit, you don’t have to pay to get it recoded or programmed either.. it’s all plug & play when you get it back and fully covered by our 1Yrs warranty.

Even if the fault you’re getting on your unit is not as described by us, give us a call anyway.. we try to keep these articles as accurate as possible at the time of publishing but to reduce confusion we only list the most common failures. Other faults are also:

ABS Light On
No Communication
Wheel Speed Sensor Faults
Juddering When Braking

audi a4 a6 s4 vw passat abs ecu repairs Whatever the faults, give us a call today on 0203 815 9441 and let us quote you happy, we even carry many of the most common ABS units in stock ready to be dispatched same day.

All BOSCH ABS units start with either 0265 or 0273. If it’s an ATE ABS unit then the part numbers will start with 10 and OEM part numbers do vary. Whichever unit you’ve got, we always suggest contacting us with the full part numbers first to get an accurate quote for the cost of repairs or to find out if we’ve got a replacement unit in stock.

Ajaz

Ajaz is a seasoned automotive electronics engineer with deep expertise in remanufacturing vehicle electronics. He has developed skills in all areas of the automotive field, from rebuilding hydraulic steering components, and mechanical gearboxes and reworking intricate vehicle electronics. Ajaz also acquired Bodyteq, a London-based vehicle bodyshop where he has developed extensive knowledge in automotive refinishing.

Alongside his automotive career, Ajaz has built a career in the IT industry, gaining accredited certification as an AWS Certified Cloud Practitioner, Cloud Architect, and Search Engine Optimisation (SEO) specialist.

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9 thoughts on “Audi & Volkswagen (VW) Bosch 5.3 ABS Pump & Controller ECU Common Faults & Repairs”

Rui Leiria 23 Jul at 8:43 am

Reply

Dear Sirs,

I have those problems with mit ecu bosch 5.3 (audi A6) i have performed several tests and check that everything is ok but the ecu is damaged.

I sent it to a company called ECUTesting and they told me that it has not possible repair.
Is it possible to by a used or repair unit from you ?!?

Hope to hear from you soon.
thanks and best regards,
Rui Leiria (portugal)
1. admin 24 Jul at 12:07 am
  
  Reply
  
  Hi Rui,
  
  Sure please send us an email with all the part numbers on your Audi A6 Bosch 5.3 ABS unit and we will match up a replacement for you. Did ECU Testing tell you why they couldn't repair it? What problem was you having?
  
  There's still a good chance we can save your unit even if another company couldn't.. maybe they didn't have the parts to repair it..
Russ 16 Mar at 9:38 pm

Reply

Hi my VW Passat TDi 05 plate when driving after about 5 or 6 miles all 4 wheels start to smoke and brakes bind – suspect abs pump! Don’t know whether electrical or hydraulic fault, ABS light comes on when it happens, be grateful if you can quote on either electrical part or hydraulic part overhaul or both thanks Russ.
Joweph Snow 28 Apr at 12:20 am

Reply

We are working on my buddies 2000 VW Passat, we are missing the signal for the right front wheel speed sensor. We have replaced the sensor and ohmed the wire from the sensor back to the abs contol module and both wires are good. Not sure if it goes anywhere else or if the control module is the problem?
john 20 Jun at 12:53 pm

Reply

Hi
I have a ABS fault with my w reg VW Transporter. Checked code and it came up with front right and rear right speed sensor. I have fitted new sensors but fault still there. When checking wiring I found that both connector terminals were going to earth. I took off the main connector from pump and checked sensor terminals and feed the wire and all this seemed ok, but as soon as I connected the main plug back on to the pump, this gave me the earth in both wires, does this mean the pump and module is faulty?
Alan Ireland 28 Jun at 5:23 pm

Reply

Hi,
I live in Macclesfield and have a vw golf plus (2005) 27,000mls. with abs problem ,part 1K0698517B and light showing always ESP.
What price are we talking about for repair or replace?

Kind Regards, Alan

Audi & Volkswagen (VW) Bosch 5.3 ABS Pump & Controller ECU Common Faults & Repairs

9 thoughts on “Audi & Volkswagen (VW) Bosch 5.3 ABS Pump & Controller ECU Common Faults & Repairs”

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