Mercedes Benz W210 front caliper repair
We have previously described the repair of the rear caliper on a 210 Mercedes, now consider the nuances of repairing the front caliper... We will not describe the entire process completely, since it will duplicate the actions from the above article on the rear caliper by 70%.
Let's highlight only the nuances that fundamentally distinguish the repair of the front caliper.
The front caliper has a slightly different structure than the rear one. But we'll start in order.
1. In order to completely disconnect the caliper, it is necessary not only to unscrew the mounting bolts and the brake hose, but also the brake pad wear sensor. To do this, you need an asterisk nozzle. And the caliper mounting bolts, unlike the rear ones, are 18, not 16.
Pad wear sensor
2. The front caliper has only one brake piston on the inside, and on the outside there is a brake pad without a piston.
Mercedes w210 front caliper repair
After removing the caliper for complete disassembly, it is necessary to remove the bracket located on the outside of the caliper. (it must be pry off with a screwdriver and pulled out of the grooves)
By the way, in order to minimize the loss of brake fluid, you can wrap a piece of rag around a small screwdriver and plug the brake hose, after hanging it up with the hole. (in this case, it is tied with a piece of wire to the lever).
Brake fluid does not leak mercedes w210
Further, the caliper can be divided into two parts by pulling out one of them from the guide pins, which, when installed back, must be lubricated with a special grease for the caliper.
We take out the piston, clean it and the cylinder, change the rubber bands (purchase a repair kit for the front caliper), lubricate the cylinder and piston with brake fluid and insert the piston back.
Mercedes w210 front caliper brake cylinder
Mercedes w210 front caliper brake piston
Prepared piston mercedes w210
We connect the parts of the caliper, lubricating the guides, install the pads in the grooves, put the bracket, screw the caliper onto the brake hose, then install it in place, fasten it with bolts (they can also be lubricated with high-temperature grease to protect against sticking), install and screw on the pad wear sensor. After that, we pump the brakes in the same way as indicated in the article on repairing the rear caliper.
