X5 general (and 4.8is) maintenance problems
 

Hi all

I've got a couple of maintenance queries on the 4.8is I'm working through and after searching without success would love some comments please...

1. Early in the morning (cold here in Oz) my aircon fan makes an awful racket for the first few minutes of operation then goes quiet. Is this a dirty filter or a sign of the fan not far from replacement?

https://live.staticflickr.com/31337/...2f17ed99_z.jpg

2. The sunroof rattles and moves up and down almost like a support is missing at the front when the shade is open ie back. The front panel moves up and down quite easily as shown in the video. Is there something I can repair to stop this? It's also getting stuck in the up position (tilt) from time to time...

https://live.staticflickr.com/31337/...90bbb68f_z.jpg

3. Got a bit of a puzzle about part numbers on the radiator I was wondering if anyone can comment on. Realoem states that the part number to replace my leaking radiator is 17101439101, which is readily available.

The actual part number on the radiator however is a longer part number 17107542787 from Behr. I've gone to Behr and their part number as a replacement corresponds with the realoem.

Does anyone know if there are differences between the two?

https://live.staticflickr.com/65535/...c27d43d2_c.jpg

4. The previous owner had on some sun shades over the front doors which were cracked and I've removed them. Does anyone have a tip on how to remove the residue with destroying the surface? I've tried WD40, goof off, eucalyptus oil, methylated spirits, orange power goo remover and caulk remover, all without success...

https://live.staticflickr.com/65535/...2fbcf717_c.jpg

Thanks and cheers

The noise in the fan might be debris (leaves'n'shit) in the fan housing (hopefully). You might get access to it by removing the cabin filter housing under the scuttle (like I have to remove to change my air filter!). Once it's out, get in there with a vaccum nozzle...

Check out this video, from 2:50 - 3:30...

https://www.youtube.com/watch?v=-LXBlUlgTjo

Can't help with the other two sorry but a hair dryer and a plastic scrapper (like a trim tool) might help remove the old foam adhesive...

Looks like the foam is stuck to the adhesive. It's protecting the adhesive from the solvents. Use some heat to release the adhesive and slowly peel away the foam. Then use goo gone etc.


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To get rid of the foam tape adhesive quickly and easily you can use a caramel wheel on a power drill. Some people swear by the 3M Stripe Off version, but I used a cheap knock off and it worked fine. Coincidentally I used it to get rid of the foam tape residue when changing the sunroof seal on my E60 - the seal compresses and hardens over time and leads to wind noise and rattles from the sunroof.

Good idea to try this on that foam/adhesive residue. Used it with great success before on emblem adhesive that was left after pulling badging.

Didn't work at all for my E61 pano roof seal's residue (just replaced with the updated seal). I had to go the old manual strip with fingers method. The wheel just made a huge mess. :dunno:

Use Heatgun to soften glue strips then apply Tea tree oil and leave for few minutes to soak-in.

And slightly rub residue.

TSP may work for you...

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Not with the foam still in they way. Gasoline might disolve the foam.


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