What is the reason why the foot brake of Mercedes-Benz E-Class cannot spring back?
3 Answers
Possible reasons why the foot brake cannot spring back after being pressed: Since it uses a hydraulic braking system, when the engine is turned off, the hydraulic pump that drives the hydraulic brake is not working, causing the braking resistance to increase sharply. This is reflected on the pedal as it becomes very heavy and hard. Overview of the braking system: The brake, also known as the braking system, refers to the action of stopping or reducing the speed of running locomotives, vehicles, other transportation tools, or machinery. Principle of braking: The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine and install corresponding brake shoes, bands, or discs on the machine base, which generate braking torque under external force.
I've encountered the issue of the foot brake not springing back a few times while driving my Mercedes-Benz E-Class, which is usually due to mechanical components getting stuck. It could be that the spring under the pedal has become loose or rusty, or that accumulated dust over several years of use is hindering the rebound. Sometimes, the linkage mechanism gets deformed, especially in humid weather when rust is more likely. Don't underestimate this problem—a stuck foot brake while parking can pose a safety hazard. If it suddenly won't release, try stepping on it forcefully a few times to see if it loosens. It's advisable to first check the foot brake area for any debris and clean out the dust. If there's no improvement, take it to a professional shop where a technician can quickly replace the damaged spring or repair the components. Mercedes maintenance isn't exactly cheap, but safety comes first. Make sure the dust cover is intact and regularly lubricate the relevant parts to extend their lifespan.
This issue of the foot brake not retracting is quite common in Mercedes-Benz E-Class models. I've handled numerous similar cases, mostly caused by spring failure or corrosion. The foot brake system relies on springs for automatic retraction; over time, springs can fatigue or break, leading to malfunction. Another possibility is the pedal base getting stuck, with dust or grease clogging the gaps and hindering movement. Those with good DIY skills might attempt to disassemble and clean it, but I recommend against random tinkering—Mercedes structures are precise and easily damaged during disassembly. It's better to visit a reliable repair shop for a comprehensive diagnosis. They can use tools to check the spring tension and linkage rods for proper function, saving you from repeated repairs and unnecessary expenses. Actually, such failures often give strong warnings. Having the foot brake components inspected during each maintenance session can prevent issues before they arise.
