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Recently updated on September 11, 2023 at 12:42 am
The wheel brake cylinder is a separate component of the drum brake. It is a common alternative to disc brakes. In today's motor vehicles, however, this is only found in the small car segment. This type of construction only occurs on the rear axle. The wheel brake cylinder serves to ensure that the pressure in the brake system (inside the brake drum) to the brake shoes, on which the brake pads are located, is transferred. Incidentally, you must not mix up the wheel brake cylinder with the master brake cylinder. This is also the case with disc brake systems. If the driver steps on the brake pedal, he transfers the pressure with the help of the brake booster and the brake fluid via the brake lines to the respective wheel brakes. When it comes to the TÜV because the next main inspection is due, for example, leaks are often noticed in the wheel brake cylinder. What speaks for possible leaks in a wheel brake cylinder and what it ultimately costs to fix the defect can be found out in the following.
symptoms and signs
- the car pulls to the side because the piston in the wheel brake cylinder is stuck
- the car only brakes on one side
- the brake drum loses brake fluid
- There is a stain on the floor due to leaking brake fluid
Should you keep driving if the wheel brake cylinder is defective?
No, you shouldn't. You should go to the nearest auto repair shop. The problem will be professionally eliminated there. Finally, a defective wheel brake cylinder leads to a reduction in braking performance. The car can also swerve to the left or right when braking. Safety is therefore severely restricted when driving. Leaking brake fluid is also harmful to the environment. Ideally, you leave the vehicle directly and call you Towing service. The risk of something happening even during the short journey to the workshop is simply too great. While you're waiting for the tow truck, you can pass the time playing an online game on your smartphone. With the Ice Casino bonus without a deposit for use in the IceCasino, the pastime is completely free and the optimal way to pass the time. Do you get the general inspection sticker despite a leaking wheel brake cylinder? no, you fail the main examination. You don't get the TÜV because there is a serious safety-related defect.
Replacing or replacing a leaking wheel brake cylinder!
First, the drum brake is fully opened. In many cars, the wheel bearing has to be dismantled first. Then the suspicion is usually confirmed and the leak is determined. Now you remove the brake shoes and brake pads. Now it is possible to replace the wheel brake cylinder. Sometimes it makes sense to immediately replace the brake shoes and brake pads (wearing parts) with new parts. If everything was done properly, the brake drum is reassembled. If the brake pads are changed, then this must be done always axis by axis take place and not just on one wheel.
Very important: At the end, the basic setting of the parking brake must be carried out so that the vehicle brakes identically on both sides and the brake system must be bled.
Cost of changing the wheel brake cylinder:
On a rear axle with drum brakes, one brake drum with two brake shoes and brake pads is installed on each wheel. If only the leaking wheel brake cylinder needs to be replaced, the material costs 20 to 100 euros. However, since it makes sense to replace the brake shoes with the brake pads directly and this change always has to be done axle by axle, additional material costs of around 40 to 100 euros can be planned for the brake shoes and pads. The workload of 1 to 1,5 hours costs an additional 100 to 150 euros. The total costs are therefore between 160 and 350 euros for replacing a leaking wheel brake cylinder with changing the brake shoes/linings per axle on a drum brake.
The following note is essential: For safety reasons, tuningblog recommends all repair, inspection and maintenance work exclusively to be carried out in a specialist workshop! Although our information is summarized to the best of our knowledge and belief, we cannot assume any liability for the content. All information is therefore "without guarantee".
Of course, that wasn't the end of it!
In this tuningblog category there are guides and instructions for common defects/repairs on the vehicle and for installing accessories/tuning parts. Our articles explain in a simple way common defects and the corresponding repairs and they also explain how the first signs of a defect become noticeable. In most cases, we also have initial clues to the repair instructions in our repair instructions approximate costs listed. The goal of ourAuto Repair Guide“ is to create a head start in knowledge for the next visit to the workshop with initial tips. This may save you from tedious troubleshooting and you may even be able to do small things yourself. The same applies, of course, to the installation of accessories/tuning parts. Here, too, we would like to help with the implementation with instructions and tips. There are many other posts on this as well. Below is an excerpt of the last and HERE there are all previous instructions.
