General Repair Information

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General Information

To perform a problem-free and successful repair, extreme caution and cleanliness, as well as properly functioning tools are an important requirement. Understandably, general safety guidelines apply when performing repairs.

A series of applicable general notes for individual repair procedures - otherwise listed several times at many points in the Service Information - has been collected here. They apply for this Service Information.

Thoroughly clean connecting points and their surrounding areas before loosening.
Place removed parts on a clean surface and cover to prevent contamination. Use foils and paper. Only use lint-free cloths!
Only install clean components: Only unpack replacement parts immediately prior to installation.
Use exclusively lubricants and sealants marked with part numbers.
Carefully cover or seal open components, if repairs are not carried out immediately.

WARNING:

If Vehicle Will Be Driving On The Streets, All Screws And Nuts Must Be Tightened Properly!

WARNING:

Danger Of Personal Injury Caused By The Engine Starting Automatically On Vehicles With The Start/Stop System.

When the Start/Stop System is on (recognizable by a message in the instrument cluster), the engine may start automatically.
Make sure the Start/Stop System is off whenever working on the vehicle. Turn off the ignition and turn it back on only when necessary.

Seals, Sealing Rings

Always replace seals and gaskets.
After removing seals/boots, inspect the contact surfaces on housings and shafts for burrs and damage and repair if necessary.

Bolts And Nuts

Fig 1: Identifying Nut And Bolt

Courtesy of AUDI OF AMERICA, LLC

Loosen and tighten the bolts and nuts of covers and housings in a diagonal sequence.
Components that are extremely sensitive must not be distorted and should be loosened and tightened in stages in a diagonal sequence.
Torque specifications for unlubricated bolts and nuts are given.
Always replace self-locking nuts and bolts.
Always replace the bolts and nuts, which are tightened with an additional tightening angle.

Electrical Components

Surely everyone has been shocked at one time or another when coming into contact with a metal object. The reason for this is the build-up of static electricity in the human body. This build-up can lead to malfunctions when contacting electrical components.

-- Touch a grounded object - for example a water pipe or a vehicle hoist - before working on electrical components. Do not make direct contact on connector terminals.