What precautions should be taken when disconnecting the battery and removing the clutch master cylinder on Volkswagen Jetta?

In case the battery is removed, a number of systems will have to be re-learned before they can run to perfection. Start with unplugging the cable of the negative terminal of the battery. Then take off the clutch pedal assembly. To US models, remove the clutch pedal switch, push in the sides of the three retainers connecting the master cylinder with the brake pedal assembly, and remove the mounting pin, and then pull the master cylinder assembly out of the brake pedal assembly. In the case of Jetta models, you should disconnect the clip tabs to each side of the peddle that hold the clutch master cylinder push rod to the peddle, and a spacer of about 1-1/2 inches (40 mm) long should be inserted between the clutch peddle and the stop of the peddle. Disconnect the clutch master cylinder to the clutch pedal assembly, counterclockwise rotate the clutch master cylinder and take it out of the pedal bracket. To install into Golf models, remove and reverse the installation order and install a new part instead of the mounting pin. In Jetta, delete the spacer, and install the clutch master cylinder in the pedal bracket followed by installing the clip on the end of the pushrod. Install the spacer again between the clutch pedal and the clutch pedal stop, insert the master cylinder into the clutch pedal bracket and twist it clockwise and fix it in place. Lastly, press the master cylinder push rod into the pedal until the clip on the end of the pushrod snaps into place in the pedal. To fit all models, fit up the clutch pedal assembly, tighten up all fasteners to the required torque values, bleed the clutch hydraulic system, and check the brake fluid level in the reservoir, adding as required to reach the required level.

Genuine Volkswagen Jetta Clutch Master Cylinder

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

5 Clutch Master Cylinders found

View related parts
Volkswagen Jetta Master Cylinder Part Number: 1H1-721-401
$117.81 MSRP: $165.00
You Save: $47.19 (29%)
ADD TO CART
Product Specifications
- Other Name: Cylinder
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1997-1999, 1994 Volkswagen Jetta | GL, GLS, GLX, GT, Jazz, K2, TDI, Wolfsburg Edition | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
View related parts
Volkswagen Jetta Master Cylinder Part Number: 1J1-721-388-G
$165.30 MSRP: $231.51
You Save: $66.21 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder
- Replaces: 1J1-721-388-A, 1J1-721-388-E
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1999-2005 Volkswagen Jetta | GL, GL TDI, GLI, GLS, GLS TDI, GLX, TDI, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
View related parts
Volkswagen Jetta Master Cylinder Part Number: 5Q0-721-388-J
$184.99 MSRP: $259.07
You Save: $74.08 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder; Master Cylinder
- Replaces: 5Q0-721-388-G
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2019-2023 Volkswagen Jetta | GLI 35th Anniversary Edition, GLI Autobahn, GLI S, R-Line, S, SE, SEL, SEL Premium, Sport | 4 Cyl 1.4 L GAS, 4 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Master Cylinder Part Number: 1K0-721-388-AF
$212.53 MSRP: $297.66
You Save: $85.13 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder; Master Cylinder
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2005-2018 Volkswagen Jetta | 2.0T, 2.5, Base, GLI, GLI SE, GLI SEL, Hybrid, Hybrid SE, Hybrid SEL, Hybrid SEL Premium, S, SE, SE Sport, SEL, SEL Premium, Sport, TDI, TDI Cup Edition, TDI Premium, TDI S, TDI SE, TDI SEL, Value Edition, Wolfsburg Edition | 4 Cyl 1.4 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 1.4 L GAS, 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volkswagen Jetta Master Cylinder Part Number: 1K0-721-388-AG
$212.53 MSRP: $297.66
You Save: $85.13 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder; Master Cylinder
- Replaces: 1K0-721-388-AA, 1K0-721-388-AE
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2011-2013 Volkswagen Jetta | Base, GLI, Hybrid, Hybrid SE, Hybrid SEL, S, SE, SEL, TDI, TDI Premium | 4 Cyl 1.4 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS

Volkswagen Jetta Clutch Master Cylinder

The Volkswagen Jetta Clutch Master Cylinder transforms every press of the driver's foot into a fine hydraulic force, which enables the gearbox to disengage naturally with the engine. This is a small pump that is mounted directly behind the clutch pedal and is applied to push fluid toward the slave cylinder to create pressure that opens a gap between the flywheel and the friction disc to allow the gears to slide in without grinding. This is because it controls all the shifts; even minor wear becomes evident too soon in the form of a spongy pedal, a pedal that does not spring back, damp areas around the pedal box, noise when engaging the gears or sudden difficulty in shifting to first or reverse. Initial models of the Jetta were based on a simple single-piston master unit, but current models of the Volkswagen Jetta are equipped with a diagonally split design that accommodates two pistons borrowed from brake technology to give some redundancy in case there is a partial hydrostatic loss, which offers enough pressure to get home. Whichever version is fitted, clean, air-free brake fluid is required in Volkswagen hydraulic systems because the compression of bubbles instead of delivering force robs pedal feel and results in dragging the clutch. If unattended, a defective Clutch Master Cylinder may hold the car in gear, but a healthy Clutch Master Cylinder ensures that the shifts are light and the drivetrain stress is reduced and the corresponding parts live long. Frequent fluid inspections and timely repair of leaks enable all Volkswagen drivers to experience smooth shifts in gears in the slick and confident way their car was designed.

Choose OEM Clutch Master Cylinder for superior quality and long-lasting durability. They match the Volkswagen's factory specifications exactly and pass strict quality control. If you plan to replace Clutch Master Cylinder on your Jetta, put OEM at the top of your list. You'll get the right fit, reliable performance, and peace of mind. We stock an extensive inventory of genuine Volkswagen Jetta parts. It is easy to find what you need. You will love our competitive prices that help you save. No more hassle with returns or guesswork. Every part includes a warranty straight from the manufacturer. Get trusted quality, strong durability, and real value today.

Volkswagen Jetta Clutch Master Cylinder Parts and Q&A

Master Cylinder
1K0-721-388-AF
Q: What precautions should be taken when disconnecting the battery and removing the clutch master cylinder on Volkswagen Jetta?
A:
In case the battery is removed, a number of systems will have to be re-learned before they can run to perfection. Start with unplugging the cable of the negative terminal of the battery. Then take off the clutch pedal assembly. To US models, remove the clutch pedal switch, push in the sides of the three retainers connecting the master cylinder with the brake pedal assembly, and remove the mounting pin, and then pull the master cylinder assembly out of the brake pedal assembly. In the case of Jetta models, you should disconnect the clip tabs to each side of the peddle that hold the clutch master cylinder push rod to the peddle, and a spacer of about 1-1/2 inches (40 mm) long should be inserted between the clutch peddle and the stop of the peddle. Disconnect the clutch master cylinder to the clutch pedal assembly, counterclockwise rotate the clutch master cylinder and take it out of the pedal bracket. To install into Golf models, remove and reverse the installation order and install a new part instead of the mounting pin. In Jetta, delete the spacer, and install the clutch master cylinder in the pedal bracket followed by installing the clip on the end of the pushrod. Install the spacer again between the clutch pedal and the clutch pedal stop, insert the master cylinder into the clutch pedal bracket and twist it clockwise and fix it in place. Lastly, press the master cylinder push rod into the pedal until the clip on the end of the pushrod snaps into place in the pedal. To fit all models, fit up the clutch pedal assembly, tighten up all fasteners to the required torque values, bleed the clutch hydraulic system, and check the brake fluid level in the reservoir, adding as required to reach the required level.