Removing and installing brake master cylinder, Audi A1 — AUDI

🧭 Before you start

Fits: Audi A1 (8X, 2010–2018)

• Opens: brake fluid
• Renewed: nuts

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• A heat shield is fitted on the brake servo on some models.
• Brake fluid must not be allowed to enter the brake servo. — Renew seal between brake master cylinder and brake servo.
• When fitting brake master cylinder, make sure that push rod is correctly positioned in brake servo.

📋 Procedure

1. ⚠ Health risk!Brake fluid is poisonous and must NOT be drawn off by sucking through a hose.Always wear chemical-resistant protective gloves to prevent brake fluid from contacting skin.Always observe the relevant environmental regulations for disposal.Risk of malfunction if brake fluid comes into contact with fluids containing mineral oils.Do not under any circumstances allow brake fluid to come into contact with fluids that contain mineral oils (e.g. oil, petrol, cleaning agents). Protective gloves must be free of oil and grease.Risk of damage to paintwork surfacesDue to its corrosive effect, brake fluid must not be allowed to come into contact with paintwork. Rinse off brake fluid spillages immediately using plenty of water. — Remove brake fluid reservoir .
2. Remove brake light switch .
3. Disconnect brake pipes (1) from brake master cylinder.
4. Seal open connections immediately using clean sealing plugs from repair kit1H0 698 311 A.
5. Unscrew securing nuts (2) for brake master cylinder. [Note: A heat shield is fitted on the brake servo on some models.]

6. Detach heat shield if fitted.
7. Detach brake master cylinder from brake servo. [Note: Renew nuts.]
8. ⚠ Brake fluid must not be allowed to enter the brake servo. — Renew seal between brake master cylinder and brake servo.
9. When fitting brake master cylinder, make sure that push rod is correctly positioned in brake servo.
10. Install and tighten new nuts (2). Note tightening torque. [Note: A heat shield is fitted on the brake servo on some models.]
11. Connect brake lines (1) to brake master cylinder.
12. Install brake light switch .
13. Install brake fluid reservoir .

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