How to replace the clutch master cylinders on BMW Z3?

The clutch master and slave cylinders should be replaced as a pair. If one unit falls, the other usually will fail soon after. Start by removing the necessary trim panel or carpet. Disconnect the pushrod at the clutch pedal. Remove the cap on the reservoir tank. On some vehicles, there is a clutch master cylinder reservoir, while on others there is a common reservoir shared with the brake master cylinder. Remove the float container, if equipped. Remove the screen and remove enough brake fluid from the tank until the level drops below the connection for the filler pipe. Remove the lower/left instrument panel trim. Then, remove the retaining nut from the end of the master cylinder actuating rod where the boll passes through the pedal mechanism. Disconnect the line to the slave cylinder and the fluid fill line going to the top of the master cylinder. Remove the retaining bolls and remove the master cylinder from the firewall. To install, position the clutch master cylinder, ensuring all bushings remain in position. Tighten the master cylinder mounting bolls to 6.5 ft. lbs. (9 Nm). Tighten the fluid connections to 12 ft. lbs. (16 Nm). Finally, fill and bleed the system.

Genuine BMW Z3 Clutch Master Cylinder

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2 Clutch Master Cylinders found

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BMW Z3 Input Cylinder Clutch
Part Number: 21526758829
$194.21 MSRP: $257.59
You Save: $63.38 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Input cylinder clutch; Master Cylinder
- Replaces: 21-52-1-162-303
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1996-2000 BMW Z3 | 1.9L Engine(E36), 2.8L Engine(E36), Roadster 1.9L(E36), Roadster 2.8L(E36), Roadster(E36)
View related parts
BMW Z3 Input Cylinder Clutch
Part Number: 21526758820
$218.98 MSRP: $290.45
You Save: $71.47 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Input cylinder clutch; Master Cylinder
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1996-2002 BMW Z3 | 1.9L Engine(E36), 2.8L Engine(E36), Coupe(E36), Roadster 1.9L(E36), Roadster 2.5L(E36), Roadster 2.8L(E36), Roadster 3.0L(E36), Roadster(E36)

BMW Z3 Clutch Master Cylinder

The BMW Z3 Clutch Master Cylinder translates pedal force into hydraulic pressure for separation of the engine and gearbox to achieve a smooth gear change. Connected to the clutch pedal, this Clutch Master Cylinder compresses the fluid inside the bore, and the pressure is transferred through a hose to the slave cylinder where the hydraulic force from the Clutch Master Cylinder is applied to press a piston that disengages the clutch plate. Every BMW Z3 relies on uniform pressure; thus, worn seals result in a soft pedal and sticking or grinding shifts. Throughout the production run of the BMW Z3, the model still applied a single bore aluminum Clutch Master Cylinder, but while early four-cylinder cars applied a remote plastic reservoir, later models had an attached one for space savings and ease of bleeding. Despite that packaging change, both versions have a spring-loaded piston and cup seals that produce about 1,000 psi that allow the clutch to bite again as soon as the pedal comes up. A well-kept BMW Z3 shows firm travel and no leaks, and replacing a tired Clutch Master Cylinder quickly avoids slave failure and protects synchronizers.

If you are looking for OEM BMW Z3 Clutch Master Cylinder, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW Z3 Clutch Master Cylinder that come backed by the manufacturer's warranty.

BMW Z3 Clutch Master Cylinder Parts Questions & Experts Answers

Input Cylinder Clutch
21526758820
Q:
How to replace the clutch master cylinders on BMW Z3?
Posted by Keen L.
A:
The clutch master and slave cylinders should be replaced as a pair. If one unit falls, the other usually will fail soon after. Start by removing the necessary trim panel or carpet. Disconnect the pushrod at the clutch pedal. Remove the cap on the reservoir tank. On some vehicles, there is a clutch master cylinder reservoir, while on others there is a common reservoir shared with the brake master cylinder. Remove the float container, if equipped. Remove the screen and remove enough brake fluid from the tank until the level drops below the connection for the filler pipe. Remove the lower/left instrument panel trim. Then, remove the retaining nut from the end of the master cylinder actuating rod where the boll passes through the pedal mechanism. Disconnect the line to the slave cylinder and the fluid fill line going to the top of the master cylinder. Remove the retaining bolls and remove the master cylinder from the firewall. To install, position the clutch master cylinder, ensuring all bushings remain in position. Tighten the master cylinder mounting bolls to 6.5 ft. lbs. (9 Nm). Tighten the fluid connections to 12 ft. lbs. (16 Nm). Finally, fill and bleed the system.
Answered by BMW Parts Specialist Tony / Jan 21, 2025