Questions on engine braking...
Thread Starter
MBWorld Fanatic!
Joined: Oct 2004
Posts: 2,139
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From: NYC
S550
Questions on engine braking...
Hey did a search couldnt find any info on this...
Is engine braking bad for the engine/transmission?
I notice i do this alot to slow down instead of using my brakes
Is engine braking bad for the engine/transmission?
I notice i do this alot to slow down instead of using my brakes
Super Member
Joined: Mar 2004
Posts: 917
Likes: 0
From: michigan/ohio/indiana
2013 c300 4matic, 2002 c240
is engine braking downshifting? if yes, i do this often as well. my rims do not get as much brake dust when i downshift to slow down and stop. i do not think that engine braking is bad as the computer will not allow you to downshift to a point that would damage components of the car.
btw, are you posting this in the wrong forum?
btw, are you posting this in the wrong forum?
Thread Starter
MBWorld Fanatic!
Joined: Oct 2004
Posts: 2,139
Likes: 0
From: NYC
S550
i have the same mentality lol
i only posted in this forum since it gets more hits, and i noticed alot of c-class guys are extremely knowledgeable no matter what the question is
i only posted in this forum since it gets more hits, and i noticed alot of c-class guys are extremely knowledgeable no matter what the question is
Super Member
Joined: Mar 2004
Posts: 917
Likes: 0
From: michigan/ohio/indiana
2013 c300 4matic, 2002 c240
i did a little google search and it seems as long as we don't exceed the rev limiter, we are fine. my car is an auto, so i have the computer deciding whether or not i could engine brake by limiting my ability to downshift if the rev is going to be in the red.
downside: waste more gas, but oh well.
downside: waste more gas, but oh well.
Super Member
Joined: Aug 2004
Posts: 810
Likes: 1
From: Illinois, Indiana
2005 C230 Sedan 6spd
I have a 6spd, and I use engine brake on a down-hill all the time.
Also, for some reason I found on a automatic transmission vehicle, it uses more gas during engine brake compare to a manual transmissin vehicle?
Also, for some reason I found on a automatic transmission vehicle, it uses more gas during engine brake compare to a manual transmissin vehicle?
Super Member
Joined: Apr 2005
Posts: 732
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From: oregon
2011 C300
Yeah, it's my understanding too that more fuel can be consumed, but it's alot cheaper than replacing the brakes too often. Making sure not to over tach is all I watch. if the grade is steep enough I reach 3000 rpm, I shift up. the computer, however, will let you redline, and thats not good.
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MBWorld Fanatic!
Joined: Mar 2003
Posts: 3,445
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From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Don't forget the increased wear on the clutches (both automatic and manual trans) and the engine itself. Miles are not as important in determining engine wear as are engine revolutions and load.
Personally, I engine brake often but usually sell my cars long before any problems from this action might show up.
Personally, I engine brake often but usually sell my cars long before any problems from this action might show up.
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