This BMW 5 series presented with a concern of sunroof wind noise, and a possible water leak or entry. A quick inspection of the existing seal showed that it had become compressed, not an unusual occurrence for a tubular rubber product after time, much like an engine’s gaskets can get hardened and leak, so the rubber seal on the sunroof, installed back when the car was first manufactured, needed service.
The Atlantic Motorcar Center has developed a very through service and replacement process for the BMW models affected with this problem. And it is a matter not so much as of “if”, but rather as “when”. BMW offers a service part, referenced in a Technical Service Bulletin, for correction of this problem. The only problem is your local dealer is unlikely to be aware of it, when we first called to check status of the part, the parts person had no idea of what were referring to. Thankfully our extensive contacts allowed us to source, locate and order the update kits, and we now stock these for most of the models affected with this problem.
On these seals, we suggest inspection yearly, and consider replacement at the 5 Year, or 60,000 mile interval. Failure in the form of leakage, usually occurs very soon after the car hits this milage or age mark. There is a better and revised seal available, which we use in our service procedure.
When replacing any sunroof system part for a leak or wind noise concern, it is very important to check and clean the sunroof drains at the same time, the BMW drains are often found clogged, or at the very least, partially plugged from dirt, leaves and other debris. As you can see from the photos, it is a bit of a process to access the seal, so be sure to always check and clean the sunroof drains at the same time.
Not a simple repair, yes, but one, if done correctly, will last several years. That’s our goal with BMW, and other autos here, fix it right the first time, and prevent problems from happening in the first place. 30 years of service experience have well taught us that “an ounce of prevention is worth a pound of cure.” Be cured, once and for all, and give us a call, we’re happy to answer any service questions you might have on your BMW, Audi, Mercedes, Lexus, Volvo or Volkswagen.
Earning your trust, every time you turn the car…that’s what we do…every day…for the last 30 years. Click here see what our happy customers have to say about us and our service at AMC Customer Reviews.
If you have questions, or if we can be of further assistance, just call us at (207) 882-969, we’d love to meet you, and your car!
Bruce and the AMC Service Team