Mercedes Benz

Electrical - Brake Lights Stay ON All The Time SI M63 03 06 Lighting December 2006 Technical Service This Service Information bulletin supersedes S.M. M63 202 05 dated April 2005. SUBJECT Brake Lights Stay on All the Time MODEL R50 (Cooper) R52 (Convertible) R53 (Cooper S) produced up to 03/05 SITUATION The customer may complain that the brake lights stay on all the time. In extreme cases, other electrical functions may not work properly. CAUSE Evaporator drains water leaking into vehicle. PROCEDURE 1. Repair and replace any components or wiring that may have been damaged because of the water intrusion. 2002-2006 Mini Cooper (R50) L4-1.6L (W10) Page 272 2. Inspect the area of the evaporator drain between the evaporator housing and body for the presence of a wiring harness. If a wiring harness is present relocate it away from the evaporator drain. This may cause the evaporator not to seat properly in the body hole. 3. Check the evaporator drain body hole for excess sealer. Remove any...