How does one remove brake master cylinder on a Citroen Xantia 1.9 Diesel the garage says it may needs to take engine out get at as there is little room this correct?

It is not necessary to remove the engine to remove the brake master cylinder on a Citroen Xantia 1.9 Diesel. While the space is limited, it is possible to access and remove the master cylinder by following these steps:

1. Disconnect the battery. This is a safety precaution to prevent any electrical accidents while working on the brake system.

2. Remove the air cleaner housing. This will provide more space to access the brake master cylinder.

3. Disconnect the brake lines. There are two brake lines that connect to the master cylinder. Use a flare nut wrench to loosen and remove these lines. Be careful not to damage the brake lines.

4. Remove the brake master cylinder bolts. There are four bolts that hold the master cylinder in place. Use a wrench to loosen and remove these bolts.

5. Remove the brake master cylinder. Once the bolts are removed, you can carefully remove the master cylinder from the vehicle.

6. Inspect the master cylinder. Check the master cylinder for any damage or leaks. If the master cylinder is damaged, it will need to be replaced.

7. Install the new master cylinder. If the master cylinder is not damaged, you can reinstall it by following the steps in reverse order. Be sure to tighten all of the bolts and nuts securely.

8. Bleed the brakes. Once the master cylinder is installed, you will need to bleed the brakes to remove any air from the system.