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W212 Active Bonnet Pedestrian Protection

Fady

Active Member
Joined
Sep 9, 2005
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476
Car
S213 E63, BMW X4 M40i & BMW Z4 28i
Another brilliant innovation that is likely to become a long term pain in the butt!

The premise here is that, if you hit a pedestrian, sensors are triggered and the back of the bonnet rises by 50mm at the far corners to cushion the impact. Not hit anyone (or anything) yet in 30 years of driving...though my motto is you are only one accident away from the next one.

Noticed today whilst washing the car that the gap on the passenger side is way bigger than the one on the driver side. Wifey informs me that it has always been like that (and that she has mentioned it to me before) as she says it looks crooked when she drives by it in her own car. So I can fit a finger in the gap between the bonnet and wing on that side and there is no gap whatsoever on t'other side. Owner's manual claims that you can re-position the bonnet if it has been triggered - essentially by raising it and wiggling around a bit. Tried to adjust it myself by doing so but just made matters worse. Bonnet can become misaligned enough that it is difficult to close and front of car then looks like a camel chewing, if you get my drift. Managed to get it back to roughly the position it started out in, but I guess it is going to need a trip to the workshop to have it done properly. Grrr!
 
Did you have the car from new?

Don't know much about active pedestrian protection, but misaligned bonnet is usually the result of badly-repaired accident damage?

Somehow how I don't see the active safety feature causing the bonnet to move sideways.

I may be wrong of course...
 
Approved used rather new (and still under warranty). It's not an uncommon issue with cars with this feature - I Googled it. Am well versed in spotting cars that have been in a bang or not :-)
 
Pre-booked car in for today and was a while-u-wait job. Apparently they 'adjusted a few bolts', whatever that means. All neatly aligned now :thumb:
 

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