Hi everyone,
Was out yesterday and got caught in traffic. Drove from about an hour, with
a lot of bumper to bumper traffic. When I came to a stop, as in end of
trip, and put the car into Park, the idle climbed to between 1700-2000 rpm.
At stop in traffic, it would idle about 1000 rpm, but it
Ed, when you are stopped in D with this high idle problem, you are putting
extreme pressure on the transmission which will lead very shortly to a Ka
Blamo of the transmission.
Don't drive it until you can get this serious problem fixed. My 92 500SL is
now sitting in my garage as undriveable until
When is the last time you tested your O2 sensor, in a KE car the O2
sensor is the most important input when the car is at operating range.
If it is telling the system that the exhaust is lean then the FI
computer will try and dump more fuel into the motor.
However if this is an intermittent
Hi John, yes, I'm sure you are right in that the added pressure is being
transfered to the tranny, though of course you don't see the high rpm until
the load is taken off the trans, and the car is parked. Funny enough,
today, the problem seems to have been somewhat fixed, under similar driving
I last check the 02 with a dwell meter off the test terminal on the inside
fender about a month ago. At that time, it was fine. I am somewhat
familiar with a CIS system, not an expert, but have kind of a working
knowledge of most of the systems. Not sure about the temp sensor though, as
I don't
PROTECTED]
On Behalf Of E M
Sent: Sunday, August 19, 2007 5:46 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] high E300 gasser idle
Hi John, yes, I'm sure you are right in that the added pressure is being
transfered to the tranny, though of course you don't see the high rpm until
the load is taken
Ed, that's because the transmission is trying to bring the rpm's down to
normal in D.
Shift to N or P and you will see the RPM's move up the scale.
Using the A/C will bring the RPM's down somewhat.
When my problem first appeared, I would shift into N at a long stop light
but that's not good for
, August 19, 2007 5:55 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] high E300 gasser idle
I last check the 02 with a dwell meter off the test terminal on the inside
fender about a month ago. At that time, it was fine. I am somewhat
familiar with a CIS system, not an expert, but have kind
The reason you don't see the high RPM is because the tranny is
determining engine idle, in this type of situation the car can still be
driven but it is advisable to shift into N but not P while stationary
and shift into gear with your foot off the brake, which puts less strain
on the drive
Subject: Re: [MBZ] high E300 gasser idle
I last check the 02 with a dwell meter off the test terminal on the inside
fender about a month ago. At that time, it was fine. I am somewhat
familiar with a CIS system, not an expert, but have kind of a working
knowledge of most of the systems. Not sure
PM
Subject: Re: [MBZ] high E300 gasser idle
Hi Tom,
How easy it is to take apart? I ask this without even having looked at
it
yet. Will I be required to buy any new bits to re-assemble it all?
Thanks again,
Ed
300E
On 19/08/07, Tom Hargrave [EMAIL PROTECTED] wrote:
Look at the small
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