strange deceleration
Thread Starter
Member
Joined: Jul 2009
Posts: 180
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From: Cupertino, CA
2003 e320 wagon (210 chassis NOT a 211))
strange deceleration
So I was test driving a 2002 e320 wagon the other day, and it did something I'm not sure is normal.
From a stop, I stomped on the gas and kept it floored until the car was almost ready to shift. I then let off the gas quickly. Normally, I would expect the auto trans to quickly upshift after I let off the gas. But instead, this car remained in the lower gear, and slowed down quickly under compression braking.
The transmission was in DRIVE. Conditions were normal (dry, mid-day, ~80F, flat paved road.)
Is it at all possible in any circumstance that this could be an expected and proper behavior, or is this a sign that the transmission has a problem.
I couldn't get it to reproduce this behavior, which to me was even more concerning.
From a stop, I stomped on the gas and kept it floored until the car was almost ready to shift. I then let off the gas quickly. Normally, I would expect the auto trans to quickly upshift after I let off the gas. But instead, this car remained in the lower gear, and slowed down quickly under compression braking.
The transmission was in DRIVE. Conditions were normal (dry, mid-day, ~80F, flat paved road.)
Is it at all possible in any circumstance that this could be an expected and proper behavior, or is this a sign that the transmission has a problem.
I couldn't get it to reproduce this behavior, which to me was even more concerning.
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Joined: Jan 2004
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What was it?
I had similar experience recently with my 97 E420. Very hot day with AC cranked and I pulled out quickly into traffic and stomped it .... it felt like I had my foot on the brake and the car pretty much stopped in its tracks. I hit the emergency flashers to keep from getting hit and quickly turned off the ignition and restarted. Shifted back into drive and off I went. Don't want that to happen again.
Bob
1997 E-420 (160k)
Bethesda, MD.
Bob
1997 E-420 (160k)
Bethesda, MD.
Thread Starter
Member
Joined: Jul 2009
Posts: 180
Likes: 0
From: Cupertino, CA
2003 e320 wagon (210 chassis NOT a 211))
I had similar experience recently with my 97 E420. Very hot day with AC cranked and I pulled out quickly into traffic and stomped it .... it felt like I had my foot on the brake and the car pretty much stopped in its tracks. I hit the emergency flashers to keep from getting hit and quickly turned off the ignition and restarted. Shifted back into drive and off I went. Don't want that to happen again.
Bob
1997 E-420 (160k)
Bethesda, MD.
Bob
1997 E-420 (160k)
Bethesda, MD.
Does anyone have any idea if this is normal or not?
Thread Starter
Member
Joined: Jul 2009
Posts: 180
Likes: 0
From: Cupertino, CA
2003 e320 wagon (210 chassis NOT a 211))
So, can anyone elaborate on when/how/why the adaptive transmission might act like this? How might I intentionally reproduce this behavior? Does it have to be in sport mode, or will it do this in standard automatic, too?
Thanks for the brainstorm...
