My nearside light cluster has water in it.

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Pele no2
Joined: Tue 20 Feb, 2018 21:21
Posts: 4

  Z3 roadster 1.9i

My nearside light cluster has water in it.

Post by Pele no2 » Sun 24 Feb, 2019 18:24

Hi, my 2001 z3 unfortunately has to stop out over the winter. I have just recently noticed water in the nearside rear light. It looks like it maybe comes in when running down the side of the boot and do I take it a gasket has given up and it’s getting in there?

Thanks, Mark.

Mike Fishwick
Joined: Fri 19 Jun, 2009 11:27
Posts: 2012

  Z3 roadster 2.8
Location: Daglan, France

Re: My nearside light cluster has water in it.

Post by Mike Fishwick » Mon 25 Feb, 2019 09:46

Take the light cluster off and use your powers of deduction! I think you will find that the lens is glued to the body, so look for an area showing signs of algie etc. Perhaps you will be able to dribble a bit of Araldite onto the back of the faulty area through the bulb hole.
A Z3 is not just for Christmas - it's for life!

LaRy
Joined: Mon 12 Nov, 2018 17:47
Posts: 13

  Z3 roadster 2.8

Re: My nearside light cluster has water in it.

Post by LaRy » Mon 25 Feb, 2019 21:41

Hi, I had similar problems with my old Volvo 740. Same technical design, water is supposed to flow over the rear light. I suggest that you take out all light bulbs and remove the rear light. Put a heater fan (or a hairdryer) in front of the holes for the bulbs. Keep a good distance, avoid melting the plastic. Better to dry for 2 hours than melting plastic.
Probably the rubber gasket is poor. Buy a bottle of spray wax, the kind of wax you use for rust protection of cars. Spray or paint a thick layer on the rubber gasket, and reassemble the light. It helped on my old Volvo. Vax is better than silicone, because it will be easy to remove the rear light again, if needed.

LaRy
Joined: Mon 12 Nov, 2018 17:47
Posts: 13

  Z3 roadster 2.8

Re: My nearside light cluster has water in it.

Post by LaRy » Tue 26 Feb, 2019 08:06

To make it clear:
You should use the White/transparent real wax, used for the rust protection, often used on the side sills to be applied straight on the paint. Not any "dirty dark brown / black stuff"

Pele no2
Joined: Tue 20 Feb, 2018 21:21
Posts: 4

  Z3 roadster 1.9i

Re: My nearside light cluster has water in it.

Post by Pele no2 » Tue 26 Feb, 2019 17:24

Thanks for the advice, I’ll take off the unit this weekend and have a close inspection.👍

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