surges
Thread Starter
Super Member
Joined: Apr 2007
Posts: 737
Likes: 38
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
surges
Just today my car started surging a little on deceleration and getting a little jerky at idle.
As I'm approaching a stop it'd actually feel like little pulsations of acceleration.
Also noteworthy was a time or 2 the engine seemed to run a little rough but just for a second. Everything else is fine. Runs strong and shifts through the gears good. At first I feared transmission but with the couple idle hiccups makes me wonder maf? No codes. No Light. No previous problems. 60k on the clock.
Any ideas?
As I'm approaching a stop it'd actually feel like little pulsations of acceleration.
Also noteworthy was a time or 2 the engine seemed to run a little rough but just for a second. Everything else is fine. Runs strong and shifts through the gears good. At first I feared transmission but with the couple idle hiccups makes me wonder maf? No codes. No Light. No previous problems. 60k on the clock.
Any ideas?
Super Member
Joined: Oct 2012
Posts: 580
Likes: 17
From: SoFlo
W212 E250 BT 4M
First of all i would recommend check these Green filters if they dirty and replace them with OEM filters . Then clean your MAF sensor or purchase a new one ( personally i would buy a new one ). See if this will make any difference. Also make sure that connector between MAF sensor and air box doesnt have air leaks .
Thread Starter
Super Member
Joined: Apr 2007
Posts: 737
Likes: 38
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
25mile trip to work was ok. I am going to order a MAF sensor as a precaution.
I havent ruled out bad gas either (Went to a new Valero), I will fill up the rest of the tank with my regular Exxon gas.
John
I havent ruled out bad gas either (Went to a new Valero), I will fill up the rest of the tank with my regular Exxon gas.
John
Thread Starter
Super Member
Joined: Apr 2007
Posts: 737
Likes: 38
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
Cleaned the MAF Sensor and filled the rest of the tank (1/2) with same gas station I normally go to and the problem seems to have rectified.
I did have 60k on the odometer so I had my transmission serviced too... Now its slipping between 2nd and 3rd. Taking it back to them in the morning. It BETTER just be low on fluid.
I did have 60k on the odometer so I had my transmission serviced too... Now its slipping between 2nd and 3rd. Taking it back to them in the morning. It BETTER just be low on fluid.
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