GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

Airbag change- New 2012 MB GL350 Bluetec member

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Old Oct 19, 2023 | 06:51 PM
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GL 350 Bluetec
Airbag change- New 2012 MB GL350 Bluetec member

Howdy I recently purchased a GL350 and the local MB dealer advised the following issues:

My right rear airbag is rubbing on the control arm? Price $2k repair

My left front strut has a slight leak.
Price $2k repair

So this is my first MB and I am shocked at the costs for repairs. I’m pretty mechanically inclined and saw various You Tube videos which show the replacement of those items to be pretty straight forward - especially the rear bags.

That said there is no way at I’m paying $4K when I can do the bag in an hour in my driveway. The question is - is there a preferred vendor or parts distributor for these parts? Are there brands to go with or avoid? Thanks in advance
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Old Oct 19, 2023 | 09:02 PM
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Unfortunately, that is about what the parts cost. The dealership is quoting you a very reasonable rate.
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Old Oct 19, 2023 | 09:02 PM
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I like the Arnott components through Rock Auto, although they just shortened their warranty from lifetime to 24 months so I don't know if that changes the economics of it. I've done both rear bags on mine and one of my front struts. One of the rear bags burst on me when it was about 2 weeks old and I replaced it under warranty but the others have been fine for 20-30k so far.

For the front, you can get the whole strut which makes more sense to me - by the time the bag is bad, the strut is usually worn out anyway. It's been a minute since I've done the job, but I seem to recall that it wasn't that different from replacing any other Mac strut, except there's no spring that needs to be compressed.

The rears can be done without even lifting the vehicle off the ground in a few minutes:
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Old Oct 19, 2023 | 09:04 PM
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Just kidding.

Seriously, would it not have made sense to research this on your own a little bit? You will get your answer quicker than waiting around for one of the forum guys to reply. And, not speaking for everyone, we tend to be slow about answering questions that have been answered a million times before.
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Old Oct 19, 2023 | 09:07 PM
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Whoopsie, looks like @wae is bright eyed and bushy tailed. Don't I look like a meanie.

Just go Bilstein. If they fail in a couple of years - they won't - you'll get free replacement.

But yeah, don't take one guy's word for it. Do a search through the forum posts. There is a ton of info on Airmatic.
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Old Oct 19, 2023 | 11:16 PM
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Wae - thanks for the reply. Exactly what I was hoping to get regarding brands, vendor and insight. Appreciate the time it took to leave a thoughtful answer.
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Old Oct 20, 2023 | 10:14 AM
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Originally Posted by wae
I like the Arnott components through Rock Auto, although they just shortened their warranty from lifetime to 24 months so I don't know if that changes the economics of it. I've done both rear bags on mine and one of my front struts. One of the rear bags burst on me when it was about 2 weeks old and I replaced it under warranty but the others have been fine for 20-30k so far.

For the front, you can get the whole strut which makes more sense to me - by the time the bag is bad, the strut is usually worn out anyway. It's been a minute since I've done the job, but I seem to recall that it wasn't that different from replacing any other Mac strut, except there's no spring that needs to be compressed.

The rears can be done without even lifting the vehicle off the ground in a few minutes: https://youtu.be/pRHCvqrlI8Y
ive done the fronts the hard way, by putting new Arnott bags onto my existing (ADS) struts.

if all you’re doing is swapping out the entire assembly, doing the fronts is a straightforward job and well within a DIYers reach.

the rears are even easier.

but yea, you’re now on a 2-year funded exchange program with Arnott.
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Old Oct 20, 2023 | 12:54 PM
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A Mobile mechanic replaced the two front strut assembly of my 2007 GL450 on my driveway, in 60 minutes, for $180.
The rear airbags are easy to replace for a DIYer
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