Sure. Sometimes it's integral to the master cylinder. But some master cylinders have a separate brake fluid reservoir that is connected by either a fluid tube or fit into an "O" ring seal on the master cylinder. You need to find out what kind you have and what you'll need to replace it. If you can't find a replacement master cylinder reservoir any other place, you'll need to get one either from a dealer or a wrecking yard.
The power brake booster of a vehicle is replaced by removing the fluid reservoir, unbolting the booster from the firewall, and disconnecting it from the brake pedal. A new booster can then be connected and bolted into place.
Lift the vehicle, remove the tire, remove the brake shoe/caliper, and remove the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, and then lower the vehicle.
Lift the vehicle on a car jack, remove the tire, remove the brake shoe/caliper, and remove the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, lower the vehicle to the ground.
Lift the vehicle on a jack, remove the tire, remove the brake shoe/caliper, and remove (and throw away) the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, and lower the vehicle to the ground.
Lift the vehicle on a vehicle jack, remove the tire and set aside, remove the brake shoe/caliper, and remove and throw away the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, tighten the nuts, and lower the vehicle to the ground.
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Lift the vehicle on a car jack, remove the tire and put to the side, remove the brake shoe/caliper, and remove and throw away the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, and lower the vehicle to the ground.
Lift the vehicle, remove the tire, remove the brake shoe/caliper, and remove the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, and lower the vehicle.
Lift the vehicle on a vehicle jack, remove the tire, remove the brake shoe/caliper, and remove the old brake pad. Dispose of the old pad, and put in a new brake pad, replace the brake shoe/caliper, replace the tire, and lower the vehicle to the ground.
where is the brake fluid reservoir on a 2006 jetta
The first thing you should do is remove the master cylinder so you can dump the brake fluid reservoir out. If you have used the brakes, it is a very good idea to get the entire brake system bled and replace all the brake fluid.
Below the brake master cylinder and to the left (drivers side) of the vehicle.