See also:

Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is effective in keeping injectors and intake valves clean. Consistent use of deposit control gasolines ...

Upholstery care
Fabric Clean with soapy water or a detergent. For more difficult spots caused by oil, ice cream, shoe polish, grease, etc., use a clothing/fabric stain remover. Consult your Volvo retailer. Al ...

Reinserting the headlight housing
When reinserting the housing, be sure that the long locking pin (to the left in the illustration) is securely in place in both of its retaining clamps. 1. Plug in the connector until it clicks ...