(3) I would like confirmation of whether or not BMW would thoroughly investigate the problem, to confirm that this was not due to a manufacturing or design defect, as I have found similar problems reported by BMW owners (documented below in this email) (2) I would like a refund to the BMW repair bill for the sum of £448.45 that I included in the previous email as an attachment I am naturally disappointed with both of your responses, and I wish to make it very clear that: The email below addressed to BMW UK should explain the matter. The dealership that repaired the leak, said that a membrane in the rear passenger off side door needed replacing, and the front passenger seat had to be removed to remove the carpet for drying. Hi I am a 520d owner, that is new to this forum, and this is my first posting but I believe, I have had a similar water leak problem with my 3 year old 5 series.
What a bitch to find, I should have looked here sooner and maybe I may have come to a quicker resolve. The car has been off the road in my workshop for just short of three weeks. BMW would have charged and simply fitted new ones. I had the dehumidifier in the car for 24 hours / 4 days drying out the carpets and backing foam I got at least 3 gallons out of the passenger side. New grommet and insulation plate fitted at a cost of £70.00.
Turned out to be the yellow grommet and insulation plate shown as per Ozzy above. I then filled a 1000 ltr IBC containing water and the UV tracer dye and still no leak but then I moved the car to do the other side and hey presto just the slightest of a run at the back of the passenger glove box area. With the carpets up and car stripped out I sat it out in the rain for three days and no leak ! I put 6000 ltrs of water on it via a fire hose and still no leak. Water ingress was slow and very minor and only showed when the car was on a particular tilt angle. I have just had exactly the same problem as Ozzy posted above and it took me three weeks to find it! No dealership help ( the costs would have been massive) I had to do a 50% nearside interior strip out and then I used special UV tracer dye and uv lamp to betray where the leak was coming in. tissue paper was dry,ĭid the same again all over the car and it was still dry, door sill/vapour barrier is not the issue. Well played around today, i put some tissue paper in between the door and door sill, and sprayed the door and surrounding areas with a pressure washer for 5 minutes. My car needs a service in a couple of weeks so I'm proposing to monitor until then but I'm not convinced that its a one off and the issue has been resolved. I've read elsewhere that there is a common issue with the vapour barriers inside the door cards and the water effectively runs out of the bottom of the door card, and hence in to the footwell, rather than being directed through the drains around the edges of the door to the bottom corner where it drains. Floor seemed to be drier (but still damp) but has been wetter again, although not to the same extent, since the rain at the weekend. I've since collected it and driven it for a week. I've had the car back to the dealer who kept it for 4 days over the weekend and apparently stripped the car back and water tested it twice but couldn't find where the water was coming from. I have exactly the same problem with my 2014 F11, except my floor mat was soaked.
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