M273 GL550 & 450 intake removal URO intake kit
Thread Starter
Super Member
Joined: Jul 2016
Posts: 703
Likes: 129
From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
M273 GL550 & 450 intake removal URO intake kit
Would like to hear from experienced DIY mechanics on when and if I should pull the intake and put the new and improved URO parts. I have a relatively low mileage GL550 with 80k miles. I have put a lot of time and money keeping up with maintenance… air ride components, all fluids, pulleys, belt…
Reading all the issues with swirl intake breakage I am thinking of removing the intake and installing the URO improved parts??
No check engine lights and runs great… any advice? thanks Bill
Reading all the issues with swirl intake breakage I am thinking of removing the intake and installing the URO improved parts??
No check engine lights and runs great… any advice? thanks Bill
MBWorld Fanatic!
Joined: Jun 2014
Posts: 1,085
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From: Melbourne, Australia
2010 ML550 VIN WDC1641722A564750, 2010 B180
115k miles on my M273 and no issues. PCV / Rebreather all clear as well so am hopefully not expecting any issues. On the swirl flaps i'd be letting it be at 80k unless you have reason to think otherwise
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Joined: Jan 2010
Posts: 3,114
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NGL450 w/EORP, S550
Would like to hear from experienced DIY mechanics on when and if I should pull the intake and put the new and improved URO parts. I have a relatively low mileage GL550 with 80k miles. I have put a lot of time and money keeping up with maintenance… air ride components, all fluids, pulleys, belt…
Reading all the issues with swirl intake breakage I am thinking of removing the intake and installing the URO improved parts??
No check engine lights and runs great… any advice? thanks Bill
Reading all the issues with swirl intake breakage I am thinking of removing the intake and installing the URO improved parts??
No check engine lights and runs great… any advice? thanks Bill
That will put more strain on the swirl flaps as they are now moving again, and will likely provoke or accelerate breakage of this whirl flap and then you’re in real trouble.I would only put the URO linkage on a brand new manifold..
Otherwise, I would just leave it alone. I’m assuming that your stock linkage is broken or is about to at this age and mileage.
Thread Starter
Super Member
Joined: Jul 2016
Posts: 703
Likes: 129
From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
Gl550 mileage
I sold my first 2008 GL550 with 160k miles with no swirl problems?? I really want to keep this 2011 with 80k miles for a while and if that involves replacing the intake I will do that too. I guess I will wait until a code or rough idle starts?? I have read a few articles about checking the Vin to see if it has the updated Intake??? Anybody have info about when they started to put the updated Intakes in the 550 engines? thanks again Bill
