Volkswagen Golf Mk7 Service & Repair Manual: Repairing threaded connections

Using torque wrench -VAG 1331-, this page covers repairing threaded connections — Note: the same prohibition on penetrating fluid, contact spray or grease applies here too.

Special tools and workshop equipment required

VAG 1331   Note The use of penetrating fluid, contact spray or grease etc. is prohibited since the missing adhesion in the threads may cause a torque excess and, therefore, the break of the threaded connection. The grey sanding pads are suitable for light dirt and "soft surfaces". The red sanding pads are suitable for heavy dirt and "hard surfaces".   WARNING Danger of injury! Observe warning notices and safety regulations → Chapter! –  Disconnect battery.

–  Loosen cap nut and remove ring terminal from threaded connection. –  Check threaded connection for corrosion, dirt etc. –  Select suitable adapter and suitable sanding pad for threaded connection.   Caution Take care not to abrade excessively the tin coating and ensure that the copper does not appear. This could produce a galvanic cell which destroys metal and causes faulty repair.   Note As the thickness of the tin coating may differ according to the design, the cleaning process must be performed step by step and a visual check of the ring terminal is necessary between the steps.

–  Set adapter on threaded connection and grind off corrosion and dirt with circular movements. –  Check threaded connection and regrind if necessary. –  Tighten connection and, if necessary, locating element again to specified torque → Current flow diagrams, Electrical fault finding and Fitting locations.   Note Optimum contact is ensured when the components to be secured are tightened to the specified torque after cleaning. –  Apply suitable anti-corrosion treatment to threaded connection → Chapter. –  Reconnect battery.   WARNING Danger of injury! Observe warning notices and safety regulations → Chapter! –  Teach in electric windows again, enter radio code, set clock and, if necessary, recode control units which emit code signals.

Questions & answers

Repairing threaded connections — Volkswagen Golf Mk7

How do I repair Golf Mk7 threaded electrical connections?

Clean the bolt/nut threads and contact surfaces. Apply contact grease. Torque to specification — overtorque strips threads, undertorque causes resistance heating.

Repairing ring terminals

Special tools and workshop equipment required     VAG 1331   Note ...

Cleaning battery clamp and battery terminal

Special tools and workshop equipment required     VAG 1331   Note The u ...

Other materials:

• Repairing ring terminals
• Cleaning battery clamp and battery terminal
• Anti-corrosion treatment
• Removing and installing roof end strip
• Removing and installing upper transverse link, front-wheel drive