Autodata Technical Issue 67 – Volvo S80 – Knocking noise from front of vehicle over uneven surfaces

Each month the Autodata team answers a common technical question and provides a printable document with technical diagrams to download and keep, exclusively for IGA members.

Q. We have a customer with a 2000 Volvo S80 who has reported a knocking noise from the front of the car when driving over rough roads. We have heard the noise on road test and have checked several components under the vehicle but we cannot find the fault. Have you heard of this fault?

A. We are aware of a fault affecting Volvo S80 models in the VIN range 1 000580-137346. It is due to the rear of the front subframe making contact with the vehicle floor. Support the engine/subframe. Remove the rear bolts and mounting plates of the front subframe Fig1.1. Lower the rear of the front subframe sufficiently to allow fitment of rubber spacer rings, which are available of Volvo parts departments. Fit rubber spacer rings between subframe and the vehicle floor Fig1.2. Refit rear bolts and mounting plates of front subframe Fig1.1. Tighten bolts to a tightening torque of 105 Nm + 120°. Road test vehicle to confirm fault has been rectified.

 

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