I discovered a similar fault with my 430d last night. I bought the car in June and I believe the warranty has just expired as its on a 2015 plate. My problem is slightly different however, as I have got water dripping down from the roof on the drivers side, particularly when i brake hard.

Has anyone experience anything similar?

I’ve also had the problem with the roof leaking when breaking hard or cornering. The car has been into bmw twice and had the roof seals replaced twice, the leak has actually got worse. It’s with bmw again at the moment, I’ll let you know if we get any solution.

Hi guys

I had this problem with my 428i (2014) about 3 years ago. The well above the wheel arch filled with water and fried the amplified. I took it to BMW who replaced the rear wing and the amplifier for £150.

I have just bought an M4 convertible (2016) and discovered a leak that drips on my Right sleeve whilst driving. I called BMW assist who are coming to collect the vehicle and will inspect it (and hopefully fix it).

I bought 420d convertible hard top from dealership 2 months ago and noticed a slight leak from the rear of drivers side. Car is still under warranty and seals have been changed. I was asked to pick car up after 3 weeks from BMW and I immediately noticed water leak from 3 places now instead of one that was very minor.Instead of fixing it they made it worse and handed it back to me which is so frustrating and I have lost my trust on them. I took the car back for them to fix it. Called BMW customer service as well who will look into this matter.

Is this job really tricky to get it right ? Shall I demand to return the car to the dealership?

Hi, I have got the same problem I have a 2018 435 Convertible with water ingress to the boot area, I returned my car under warranty to be told that the drain holes in the boot were the wrong diameter causing a blockage these would be enlarged which should cure the problem, it would appear to be a common problem.

I returned the car to the BMW dealership two months later with the same problem, ingress of water to the boot, they replaced the boot seal under warranty.

Two weeks later I still have the same problem, I have returned the car once again for the same problem water ingress in the boot, I received a phone call from the dealer telling me that they did not know how the water was getting into the boot, they still have my car.