Golf Hybrid ABS and Traction Issues Need Quick Fix

Had the exact same issue on my 2017 Golf GTE Hybrid last winter. Having worked on basic car maintenance tasks before, I knew this was beyond my skill level and required professional diagnosis. The ECM was reporting multiple error codes related to the ABS system. After getting it checked, the workshop found the ABS control unit was completely defective and needed replacement. The total repair cost was 1000€, including diagnostics and labor. The main symptoms matched yours exactly, constant ABS warning light and compromised traction control, while the speedometer and odometer readings remained normal. The malfunction was affecting the entire stability control system. To help diagnose your specific case more accurately, could you share: Exact mileage on the vehicle, When did the problem first appear, Any unusual noises when braking, Whether the issue gets worse in wet conditions, If any other warning lights are active This information would help determine if your car has the same underlying issue as mine had.

Had my latest service just 2 weeks ago at 59858km. Experiencing identical symptoms, persistent ABS warning light and poor traction control. The ECM diagnostics at the workshop showed fault codes in both the ABS module and speed sensor circuits. Based on your description, my symptoms align perfectly with what you experienced. The transmission and basic functions are working normally, with only the stability systems affected. Planning to get a full diagnostic scan to confirm if it needs a complete ABS control unit replacement. Thanks for sharing your repair costs. Helps set realistic expectations for the potential repair budget.

Thanks for the follow-up details about your recent service. Your mileage and fault codes strongly suggest the ABS control unit issue I encountered. The similar timing, just after service, is particularly interesting, though likely coincidental. The normal transmission operation despite the ABS faults matches my experience exactly. When my ABS unit failed, the basic input from the speed sensors still worked fine for speedometer function, but the ABS module couldn't process the signals correctly for traction control. A quick heads up based on my repair: While my total was 1000€, prices for parts have increased since then. The control unit alone might cost more now. My workshop also found some corrosion on the ABS sensor wiring while doing the replacement, worth having them check those connections during diagnosis. If your fault codes match the ones I had, particularly those pointing to the control module rather than just sensor circuits, you're likely looking at a similar repair path. The full diagnostic scan is definitely the right next step to confirm.

Thanks for such detailed information about your similar experience. I'll definitely have them check for wiring corrosion when they inspect the ABS system. The fact that your ECM showed multiple error codes similar to mine really helps confirm my suspicions about the control unit being the culprit. Just booked the car in for next week. The workshop mentioned they'll do a complete diagnostic scan of the ABS module and speed sensor circuits first. Given the symptoms match yours, especially how the dashboard speedometer works fine while the traction control is compromised, I'm mentally preparing for a potential control unit replacement. Good to know about the possible price increase for parts. I'll make sure to get a detailed quote including labor before authorizing any repairs. Really appreciate you sharing your repair experience, helped me understand what I might be dealing with and set realistic cost expectations.