BMW 4 SERIES CONVERTIBLE , WATER LEAK!!

[m3sye]

My brother has a 15 plate 435d Convertible, 21,000 miles, warranty expired 3 months ago.

Last week when driving when breaking he heard what sounded like a swoshing sound from the rear left side. His amp went and after investigating there seems to be a massive build up of water where the amp is.
He managed to drain some of it using a cloth but there is still more in the car he can't get too...
Has anyone else experienced this and where do people think he would stand with his warranty running out 3 months ago?

Thanks

[m3sye]

Thanks River -

I think he is preying they are kind with his warranty - shocking to think you can spend so much on a car and get a fault like that

[m3sye]

Neural said:

My M4 convertible had exactly the same issue, it’s a known problem. BMW said the side skirts cover the drain holes and drilled some holes in mine under warranty.

Don’t brake hard, I had a tidal wave!

Designers are earning their money then

[m3sye]

Canucknavy said:

I am currently going through the same situation as OP. My 2015 m235i convertible has suffered a mater leak which was determined to be coming from the trim strip where the roof and trunk lid meet. There are a couple of screw holes which weren’t sealed correctly according to the BaMW tech investigating the issue. End result that both my stereo amp and roof motor are completely ruined. Car is just out of warranty but dealership is going to bat for me in the hopes that BMW do the right thing and cover the costs of their shoddy manufacturing. MTF once BMW responds. #shouldagotthemerc.

My brother spoke to BMW, they asked for a £250 contribution when they thought it was going to be £500 - (they said he will need to pay no more) in the end the cost was £2500

[m3sye]

Canucknavy said:

Update: So I received a call from the dealership. Apparently there has been a newer M24i convertible with the same issue. Fortunately for the owner, he had the work done under warranty. I on the other hand am now on the hook for a portion of the cost. The fix will cost £2400.00 + VA Tof which they want me to pay £980.00 + VAT. Not happy but as the car is out of warranty it is better than paying the whole amount. It seems to be a class issue though, and I would be interested in knowing if anyone else has these issues. I'm having the roof motor plastic wrapped just in case this occurs again.

My brother got away lucky then paying £250

[m3sye]

sbk1972 said:

2400 + Vat ? For exactly what ? I would imagine your amp is blown ? yes ?

I would want to know exactly what parts / activities BMW will be implementing for that £3K work. Does it then work out if £1K is worth while. I would want to know what parts have failed to look around at buying them myself, and having them fitted.

I owned a M3 for years and noticed on warranty claims everything was £1000s therefore making your contribution seem great value.

I just dont buy it, or believe it.

Water leaks are dull to seals or holes. Takes a bit of investigation with a hose, and perhaps u squashed up in the boot with a torch.

£3K.... jesus.

SBK

The cost for my brothers was mostly electrical, he was not arsed as he only had to spend £250 towards the bill

[m3sye]

sbk1972 said:

Eectrical work ? What does that mean ? You've got water in some ECUs. What happens if these dry out ?

My point here is I doubt this is £3K worth of work. I would want to see a breakdown on the suggested work plan.

Your contribution is £1100 (inc VAT).

I would also be arguing with BMW big time. I would be saying that I WILL not pay and state how other owners have only had to pay smaller amounts.

I would threaten social media.

Also, look on eBay for salvage cars, for replacement ECUs. Or sniff around BMW forums as these tell you exactly what the issue is and to do.

I had many a difficult conversation with BMW dealers over my M3.

Look at it this way. £1100 is a lot of cash, perhaps a weeks earnings ?? If so you have 35 hours to argue to earn your money.

SBK

Really does not matter for my bro, its done,, he had to pay £250 - BMW PAID THE REST!!!