Cleaning of Guide Rails/Lubrication or Guide Rails
Cleaning of Guide Rails:1. The bulk of the old lubricant, dirt and debris will be removed as follows: Insert the VAS 6621 to the rear of the guide rail (Figure 22, 1), turn it 90° (Figure 22, 2) and slide it toward the front (Figure 22, 3). Turn the tool 90° once again and remove it (Figure 22, 4-5). Clean the old lubricant and debris from the tool. Repeat this procedure starting from the front of the guide rail and slide the tool toward the rear. Perform this procedure to both sides.
2. Remove any remaining old lubricant, dirt and debris using a lint-free cloth. Using a vacuum cleaner may aid in removing any sand, grit or other abrasive materials that would damage the sunroof mechanism.
Lubrication of Guide Rails:
1. Thread the VAS 6621 tool onto the lubricant canister (G 060 751 A2). Install the assembly into the VAG 1628.
2. Insert the VAS 6621 into the guide rails in the same way as the cleaning procedure and inject the lubricant evenly along the guide rails. Perform this along the entire length of the guide rails and to both sides