Throttle lag




Any recent fixes, changes/service?
The simple thing to check:
- condition of your air filter - see if it is dirty or restricted at all
- next, check the operation of the MAF Sensor. While the sedan is running, disconnect the elec. connector to the MAF Sensor. Any difference in it running?
- next, jump into the sedan and drive forward from a stopped position. Any difference?
No CEL?
There could be saved codes so I would suggest you scan (borrow if need be) and post here.
EDIT: forgot to ask
with the MAF connected....
When you start the sedan cold and immediately take off, describe the problem, if any.
When the motor is fully warmed up, what's idle speed?
At idle speed, is there any shaking or rough running of the motor?
Last edited by khomer2; Feb 6, 2020 at 10:19 PM.




https://www.mercedesmedic.com/reset-...-instructions/




And the results..?
You still need to perform a scan to see if there are any saved codes. It may not show any CEL or codes as they could still be pending.
Do fool yourself thinking this is an occasional problem.

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- Chris
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engine smooth cold and warm.
idle warm 700 RPM
I did not do the MAF test yet, I was wondering if disconnecting would cause a CEL? I will get a scanner for stored codes, no CEL now




- Chris



