Brake pedal, hoses and brake fluid BMW: problems by model and engine

Documented faults, from most to least important

Severity × frequency. Below each one, the BMW models it appears in.

- Critical severityFrequency: OccasionalBMW Serie 2 Active Tourer U06Defective weld on the hollow shaft of the brake servo (brake system servomotor)In 2025 BMW recalled several models, including the 2 Series with type U2AT (Safety Gate alert SR/00053/25), because the hollow shaft of the brake servomotor could be poorly welded and could break under high pressure. In the United Kingdom, the DVSA counts only 3 Active Tourers built between March 2023 and July 2024.
- Critical severityFrequency: OccasionalBMW X1 U11Faulty weld on the hollow shaft of the brake servo (brake system servo motor)In 2025 BMW recalled, with a Safety Gate alert, X1 and iX1 models (and others) built between July 2022 and November 2024 because the hollow shaft of the brake servo motor could be badly welded and break under high braking pressure: the pedal would need more force, braking distances would grow and ABS and DSC would lose assistance.
- Critical severityFrequency: OccasionalBMW X2 F39Integrated braking system (IBS) that can lose hydraulic assistanceBMW recalled X2s built between June 2022 and January 2024 because the integrated braking system could fail and leave the pedal without hydraulic assistance, with longer braking distances and no ABS or DSC. The fix is warning software and, if a doubtful unit is found, its replacement.
- Critical severityFrequency: RareBMW Serie 5 E60Soft brake pedal due to a fault in the brake servo vacuum pump or hoseBMW recalled around 5,000 5 Series E60s in March 2016 because a fault in the vacuum pump (diesel) or the brake servo vacuum hose leaves the brake pedal soft with the engine running, according to fiches-auto.fr.

By BMW model

Open yours to see only the faults that affect it, by engine and by year.

Frequently asked questions

What faults with the brake system do BMW cars have?

In 4 models from BMW there are 4 documented faults with the brake system. The most important: defective weld on the hollow shaft of the brake servo (brake system servomotor), faulty weld on the hollow shaft of the brake servo (brake system servo motor) and integrated braking system (IBS) that can lose hydraulic assistance. Each fault has its own page with the affected years and versions, the symptoms and the repair cost.

Which BMW models have the most problems with the brake system?

BMW Serie 5 E60 (1 fault), BMW X2 F39 (1 fault), BMW Serie 2 Active Tourer U06 (1 fault) and BMW X1 U11 (1 fault).