Body - Water Leak Into Trunk Area
SI B51 29 08Body Equipment
November 2008
Technical Service
SUBJECT
Water Leak into the Trunk Area
MODEL
E64 (6 Series Convertible) produced from 8/2006 to 5/2008
SITUATION
The convertible top stowage compartment has 4 drains to allow water to exit from it. Over time, these drains may become blocked by leaves and debris. Once these drains are clogged, water may collect and overflow into the trunk and may damage various electronic components.
Cars produced up to 8/2006 should be addressed per the Service Action noted in SI B51 26 08.
CAUSE
Clogged stowage compartment drains
CORRECTION
Unclog and then modify the affected drain. In isolated cases, new drain(s) should be installed. Replace any damaged electrical components.
PROCEDURE
The following procedure is outlined for one side of the vehicle. The same process should be carried out for the opposite side.
1. Loosen the rear part of the rear wheel well liner. Refer to Repair Instruction RA 51 71 041 for reference.
2. Pull back the wheel well liner (1) to expose the water drain outlet flap. This drain is seated to the body immediately behind the wheel well liner.
3. Pull on the flap (1) covering the outlet to remove it from the drain. Dispose of the removed flap and do not reinstall it when testing has concluded.
4. Remove any debris that was trapped at the end of the drain tube.
5. Open the convertible top cover.
6. Inspect the water drainage as follows:
a. Pour approximately A1/2 a gallon of water toward each of the drains (1) in the stowage compartment and watch the water drain out of the outlet tube in the wheel well. The drains are located adjacent to the rear shock mount (2) and flexible cover leading into the luggage compartment (3).
b. If the water is flowing properly out of the outlet tube, no further actions are necessary. Continue to step 9.
c. If the water is NOT flowing properly out of the outlet tube and only trickles out, replace that drain tube assembly. Both drain tube assemblies should not be replaced unless each is not flowing properly at this time. Continue to Step 7.
7. Remove the luggage compartment trim, as well as the wheel well liner, per Repair Instruction RA 51 47 140.
8. Install a new drain tube assembly. The modified outlet flap which is on the new drain tube assembly does not need to be removed. Ensure when it's installed that the tubing does not sag down in such a way that water will collect and not drain out smoothly.
9. Begin again from step 1 for the opposite side drain.
10. Reinstall any removed parts.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
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