Audi 80 Quiz
Body Components

Cleaning the Drain Openings

In this manual: Body Components
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

No welded seam is completely watertight, so water can always penetrate. For this reason, drainage holes are built into all hollow sections of the vehicle. If they become clogged with dirt or with excessive application of underbody anti-corrosion protection, the water that enters can no longer drain away, and corrosion starts from the inside of the vehicle. Body side members are especially vulnerable.


PROCEDURE

Clean the openings regularly with pipe cleaning brushes.

If the vehicle is equipped with a sliding roof, also check the roof drain openings as described above.

For cleaning from the front upward and from the rear downward, an old speedometer drive cable is suitable.

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A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.