Golf 1J Noises: Rumble & Drone Explained (Solution)

Rumbling and booming noises from the exhaust system.

Cause:
An incorrectly positioned exhaust system can cause rumbling and droning noises.

Solution:
Check the exhaust system for proper installation. The inspection must only be performed when the exhaust system is cold.

Is the storage bolt parallel to the tunnel bridge?
Is the locating pin positioned between the fixing holes?
Is the distance between the pipe and the tunnel bridge acceptable?
With a pipe diameter of 50 mm, a clearance of 38 mm must be maintained.
With a pipe diameter of 55 mm, a clearance of 36 mm must be maintained.
If the exhaust system is incorrectly installed, adjustments need to be made at the tunnel bridge.

A new crimp sleeve should be used.
Diameter 50 mm, Part No. 191 253 141 F.
Diameter 55 mm, Part No. 893 253 139 A.

To ensure the correct distance between the exhaust pipe and the tunnel bridge, the pipe must be secured with two flat bars (18 mm thick).

The clamping sleeve should be mounted at a distance of 5 mm from the marking on the exhaust pipe.
For 02J and 01M transmissions (AG+SG), the designation is "A".
For 02K transmissions (shift linkage), the designation "S" applies.

The exhaust pipe should be shifted axially so that the bearing pin is located between the two fixing holes.

The adjusted pipe must be secured using the clamps of the clamping sleeve.

Please provide the text you would like me to translate from German to English.

Is the locating pin positioned between the two fixing holes?

Is the storage bolt aligned parallel to the tunnel bridge?
When adjusting the exhaust system, it is important to ensure that the mounting bracket on the rear silencer is in the correct position. In the cold state, it is slightly tilted in the direction of travel, so that when the system warms up and expands, a neutral position is achieved at the mounting point.