Engine bay is HOT.
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Newbie
Joined: May 2020
Posts: 14
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2014 E63 AMG S
Engine bay is HOT.
I've heard and know that the E63 tends to run quite hot, and I'm not referring to the gauge temps of Oil and Water, but the actual heat emitting from the engine when you pop open the hood or stand next to the car.
Even under normal driving; after I park the car I can feel a good amount of heat coming from the front. With the hood open it's even more prevalent and when I keep the car running and have the hood open the car feels like it's blowing hot air like a hair dryer. Is this normal or should I be getting something looked at?
Even under normal driving; after I park the car I can feel a good amount of heat coming from the front. With the hood open it's even more prevalent and when I keep the car running and have the hood open the car feels like it's blowing hot air like a hair dryer. Is this normal or should I be getting something looked at?
Last edited by GrimHD; Jun 12, 2020 at 09:46 AM.
Senior Member
Joined: Apr 2010
Posts: 394
Likes: 155
2013 E63 P30, 2010 GL550
Similar experience here. One can contain M157 heat with turbo blankets and downpipe wrap. Additional upside is to slow the deterioration of plastic components in the engine bay and slightly quicker boost arrival. Pain to do because of minimal space to work. Not cheap, but good return on investment if this is your thing.
Last edited by maxusa; Jun 11, 2020 at 08:43 PM.
Senior Member
Joined: Oct 2019
Posts: 415
Likes: 165
From: Northern VA
2016 E63s
That’s a lot of metal (heat sink) confined in a small area. Not a lot of open spaces for the air to get exchanged and vent out of the engine bay.
I try to drive in S mode and like a granny 10 minutes before getting home and then idling in the driveway for a few minutes in hopes of pulling the heat away from the turbos (old habit from an old car, too cheap to buy a turbo timer). If really hot out I’ll pop the hood and leave up for 30 minutes. Neighbors think I’m showing off the engine.
I also noticed the car getting hotter now that the oil level is lower. Got the “add 1 quart” warning the other day. Service advisor claims these cars can burn 1 quart every 800-2000 miles, which is just nuts.
I try to drive in S mode and like a granny 10 minutes before getting home and then idling in the driveway for a few minutes in hopes of pulling the heat away from the turbos (old habit from an old car, too cheap to buy a turbo timer). If really hot out I’ll pop the hood and leave up for 30 minutes. Neighbors think I’m showing off the engine.
I also noticed the car getting hotter now that the oil level is lower. Got the “add 1 quart” warning the other day. Service advisor claims these cars can burn 1 quart every 800-2000 miles, which is just nuts.
Member
Joined: Jan 2016
Posts: 236
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From: Was, Cali, 95XXX, now Bavaria 91XXX
993 cab, 2014 E63 AMG 4matic T
I took all the plastic covers off to not trap heat when parked. I even considered installing a ecu fan but I have enough other projects to work on.
Junior Member
Joined: Feb 2020
Posts: 57
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From: Raleigh,NC
E63S
Heat is good for the turbos, no? Just bad for every other plastic component in there.
I feel there's some sort of turbo timer on the car- when i drive hard the fan remaons on after powering off for a bit.
Had a similar issue on my X5M- all my ducting and hoses became brittle and cracked- I started to do the whole silicone vent pipe/ vac swap.
I feel there's some sort of turbo timer on the car- when i drive hard the fan remaons on after powering off for a bit.
Had a similar issue on my X5M- all my ducting and hoses became brittle and cracked- I started to do the whole silicone vent pipe/ vac swap.
MBWorld Fanatic!
Joined: Jan 2012
Posts: 1,043
Likes: 310
From: NYC
E63S
In my experience, all turbo timers do is keep your car running for whatever amount of time you set the timer for after you turn your ignition to "off". This is supposed to allow "cooler" oil to "cool" your turbo. You can sit in your car for 30secs or a full minute and then shut it off. Same thing. I don't think that heat is necessarily "good" for turbos but according to thermal dynamics, heat helps turbos spool up. Other than that I am pretty sure heat is actually an unwanted element.
If I ever decide to go the downpipe route, I'd definitely be wrapping them and looking into turbo blankets, they are not that pricey. https://www.ptpturboblankets.com/pro...-blankets-lava Question is, can they be installed with the motor in place?
If I ever decide to go the downpipe route, I'd definitely be wrapping them and looking into turbo blankets, they are not that pricey. https://www.ptpturboblankets.com/pro...-blankets-lava Question is, can they be installed with the motor in place?
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Senior Member
Joined: Oct 2019
Posts: 415
Likes: 165
From: Northern VA
2016 E63s
Heat is good for the turbos, no? Just bad for every other plastic component in there.
I feel there's some sort of turbo timer on the car- when i drive hard the fan remaons on after powering off for a bit.
Had a similar issue on my X5M- all my ducting and hoses became brittle and cracked- I started to do the whole silicone vent pipe/ vac swap.
I feel there's some sort of turbo timer on the car- when i drive hard the fan remaons on after powering off for a bit.
Had a similar issue on my X5M- all my ducting and hoses became brittle and cracked- I started to do the whole silicone vent pipe/ vac swap.
I always view heat as the enemy.
MBWorld God!
Joined: Jul 2010
Posts: 31,277
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From: on my way
2012 CLS63
My 2012 has been running a little hotter the last year or so. The shop said all appears fine....but I am seeing the temp gauge read up to 219 before which is unusual in my driving it for 60K miles. Again, it is a 2012, not a new car by any means but interesting nonetheless and I have been wondering why this has been happening. Same engines right?
Super Member
Joined: Nov 2010
Posts: 693
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From: USA
m157 SL63
If I ever decide to go the downpipe route, I'd definitely be wrapping them and looking into turbo blankets, they are not that pricey. https://www.ptpturboblankets.com/pro...-blankets-lava Question is, can they be installed with the motor in place?
MBWorld Fanatic!
Joined: Jan 2012
Posts: 1,043
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From: NYC
E63S
Super Member
Joined: Nov 2010
Posts: 693
Likes: 152
From: USA
m157 SL63
They said the turbo blankets couldn't be installed without dropping the motor. They did recommend the DP heat wrap, but said it was ~ $600 labor (plus a few bucks for the wrap).
MBWorld Fanatic!
Joined: Jan 2012
Posts: 1,043
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From: NYC
E63S
I had suspected that blankets would be hard to install judging by the lack of real state in the engine bay. If/when I get around to this I'd be wrapping those pipes myself (there's nothing to it). Thanks for the info!
Junior Member
Joined: Feb 2020
Posts: 57
Likes: 22
From: Raleigh,NC
E63S
Keep in mind if you're planning to wrap the "true" downpipes- which would replace the bridge pipe (turbo to midpipe) as well as the midpipes, that you still need to drop engine to mount the flange. I did the Weistec midpipes (modular) which keeps the OEM bridge pipe and you have access to the flange without dropping engine. I considered jet coating the pipes but I feel the majority of heat is on that turbo and bridge pipes, so didn't really make sense.
MBWorld Fanatic!
Joined: Jan 2012
Posts: 1,043
Likes: 310
From: NYC
E63S
Keep in mind if you're planning to wrap the "true" downpipes- which would replace the bridge pipe (turbo to midpipe) as well as the midpipes, that you still need to drop engine to mount the flange. I did the Weistec midpipes (modular) which keeps the OEM bridge pipe and you have access to the flange without dropping engine. I considered jet coating the pipes but I feel the majority of heat is on that turbo and bridge pipes, so didn't really make sense.
Junior Member
Joined: Jul 2017
Posts: 28
Likes: 10
From: Palm Coast FL
2015 E63s AMG
Even before my AMG ownership, 'heat soak' after parking my vehicles here in Florida, i was attune to. My Ford powerstoke diesel gets the hood open, and a fan blowing in front of it, to circulate air, and keep the underhood rubber/plastics etc from baking.
Same thing with my supercharged Mustang.
The AMG gets the hood open to service height, medium shop fan on blowing air across the front end and engine, and the garage door slightly open for a couple hours, till temps drop.
Albeit, Im sure this classifies as OCD, but I cannot help but think of full temperature engine and fluids sitting sealed underhood, just baking everything around it in stagnant air, all while heating up
everything in my garage, and transferring that heat into the house.
Same thing with my supercharged Mustang.
The AMG gets the hood open to service height, medium shop fan on blowing air across the front end and engine, and the garage door slightly open for a couple hours, till temps drop.
Albeit, Im sure this classifies as OCD, but I cannot help but think of full temperature engine and fluids sitting sealed underhood, just baking everything around it in stagnant air, all while heating up
everything in my garage, and transferring that heat into the house.
Senior Member
Joined: Apr 2010
Posts: 394
Likes: 155
2013 E63 P30, 2010 GL550
