Volkswagen Golf Service & Repair Manual: Exhaus system

Removing and installing engine control unit -J623- (with protective housing)

Special tools and workshop equipment required     Hot air blower -VAS 1978/14A--item 1- with nozzle - ...

Exhaust pipes, silencers

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Other materials:

Aqua Premium system
Designation: Uni (solid-colour) waterborne mixing paint -LWM 083 ...- Metallic, pearlescent, special-effect waterborne mixing paint -LWM 084/ 086...- Uni (solid-colour) waterborne base ...

Silicone remover
Designation: Aqueous silicone remover -LSW 019 000 A5- Silicone remover -LVM 020 000 A5- Slow-drying silicone remover -LVM 020 100 A5- Issued 02.2012 ...

Checking high-pressure safety valve on air conditioner compressor
Checking Function: protects refrigerant circuit against excessive pressures. –  Observe safety precautions → Chapter „Safety precautions when handling refrigerants“. ...