VW Up Brake Pedal Feels Spongy, Low Fluid Warning

Had a very similar issue with my 2020 VW e-Golf. After noticing the same spongy brake pedal and checking the brake fluid level, I took it to a workshop since brake system problems need proper diagnosis. The mechanics found worn brake pads and slightly warped rotors affecting the hydraulic brake performance. The master cylinder was tested and thankfully worked fine, but the low brake fluid level was indeed a warning sign of the worn brakes. Total repair cost came to 480€ including: New brake pads, Resurfacing rotors, Brake fluid flush and replacement, Full brake system inspection The warning signs you describe match my experience perfectly. However, would be helpful to know: How many miles/kilometers on your Up Electric? Are you hearing any squealing or grinding when braking? Has the brake warning light appeared on your dash? These details would help determine if you are facing the same wear-related brake system issues. With electric vehicles, brake wear patterns can differ from conventional cars due to regenerative braking, but regular maintenance is still crucial.

Had my last service at 137520km and can confirm no squealing or grinding noises during braking. The brake warning light has not appeared on the dashboard yet. The brake fluid level keeps dropping slowly but steadily over the past weeks. After your experience with similar symptoms, I will schedule a brake inspection to check the entire brake system properly. Better safe than sorry when it comes to brakes. A full brake fluid replacement might be overdue anyway considering the mileage. Thanks for sharing the detailed breakdown of repairs and costs, helps set realistic expectations for potential work needed.

Thanks for the follow-up details. Based on the steady brake fluid drop you described, there could be a small leak in the hydraulic brake system that needs attention. This is different from my case where the fluid level dropped mainly due to brake pad wear. When my e-Golf had the brake service, the mechanics emphasized checking all brake lines and connections during the inspection. A slow fluid leak often points to deteriorating seals or connections in the brake system rather than just wear. The good news is no warning lights or unusual sounds suggest the brake pads and rotors might still be in acceptable condition. But the inconsistent brake pedal feel combined with dropping fluid definitely requires professional diagnosis to prevent more serious brake issues. Given your mileage, a complete brake fluid replacement would be good preventive maintenance. Most manufacturers recommend fresh brake fluid every 2 years or 40000km since it absorbs moisture over time, affecting brake performance. Would check the repair history to confirm when the last brake fluid service was done. My total repair ended up being more extensive, but catching issues early typically means simpler fixes and lower costs.

I reviewed my service records and the last brake fluid change was indeed over 2 years ago. Given the symptoms and your feedback, I booked an appointment for next week to have the brake system thoroughly inspected. The steady fluid loss without warning lights or unusual noises does suggest a potential leak in the hydraulic brakes rather than just normal wear. Will make sure they check all brake lines and connections as you mentioned. The mileage on my vehicle definitely indicates its time for fresh brake fluid anyway. Good to know your actual repair costs even though my issue might be different. Will update once the workshop diagnoses the exact problem with the master cylinder and brake system components.