SPONSORED LINKS

Car not accelerating

Tiny
BLESSING EWOBOR
  • MEMBER
  • 2000 MERCEDES BENZ C200
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 99,543 MILES
Hello, the car listed above is starting but vehicle is not accelerating, if it does it won't exceed 2 on the tachometer. I have checked the fuel pump and spark plugs, they are working properly. I wanted to scan it but I can't find the OBD port (it has been removed). What other things can I check for?
SPONSORED LINKS
Friday, August 28th, 2020 AT 6:00 AM

12 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi,

I'm not showing a C200. The closest thing I can find is a C230 with the 2.3L.

As far as the DLC, I attached a pic below that shows two locations. Take a look at it and see if it helps. Keep in mind it is from the wiring schematic of a C230.

Now, when the engine idles, is it a smooth idle? Next, if the vehicle is in park or neutral, can you rev the engine beyond 2,000 RPM's?

Let me know
Joe
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, August 28th, 2020 AT 1:19 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
The engine is not smooth idle, the engine do hesitate but somehow stable at that 2,000 rpm's.
Was this
answer
helpful?
Yes
No
Friday, August 28th, 2020 AT 1:30 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
The engine won't exceed 2,000 rpm's, when the vehicle is in park or neutral.
Was this
answer
helpful?
Yes
No
Friday, August 28th, 2020 AT 1:35 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Chances are it is related to a crank or cam sensor. We need to locate the DLC. I found a pic of where the C class DLCs are located. See if you can locate this on your vehicle.

See pic 1.

Joe
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Friday, August 28th, 2020 AT 8:25 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
I finally found the DLC, it was squeeze somewhere. These are some codes I found in the ETC.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, August 29th, 2020 AT 4:37 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi,

What brand car is this? The heading says Mercedes and the logo on the steering wheel is a Lexus.

Let me know.
Joe
Was this
answer
helpful?
Yes
No
Saturday, August 29th, 2020 AT 2:27 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
It is Mercedes Benz, all the pictures is for the Mercedes Benz except that one with the Lexus logo. If you notice the codes starts from alphabet "P" is for the Lexus while the Mercedes Benz starts with numbers. Please ignore the Lexus, I am still working on that. I really apologise for the inconveniences I have caused you.
Was this
answer
helpful?
Yes
No
Saturday, August 29th, 2020 AT 9:43 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
No problem. I was just confused. LOL

You have a ton of different issues. Please keep in mind, I don't have the specifics on the C200. I am using info from a C230.

Since there are several codes indicating implasable readings, it doesn't seem like a sensor issue but instead either a break down in the CAN bus or a connection at the ECM. That is where I would start. I attached what I have. I hope it is the same or similar to what you are working with.

The first pic shows the CAN system schematic. The remaining pics are from the power-train control schematics.

Check for loose connections at the ECM first.

I hope this helps.

Joe
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
+1
Sunday, August 30th, 2020 AT 9:24 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
Thank you very much, but the pics you sent are blur. I don't know if I can get clearer ones.
Was this
answer
helpful?
Yes
No
Tuesday, September 1st, 2020 AT 11:09 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi,

Take look at the attached and let me know if you can read them. It is one pic that I broke into 3 parts. Please let me know if that helps. I did overlap them so you can follow it.

Let me know.

Joe
Images (Click to make bigger)
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, September 2nd, 2020 AT 6:29 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 666 POSTS
I can see it clearly but that is for the CAN system schematic, what about the power-train control schematic?
Was this
answer
helpful?
Yes
No
Wednesday, September 2nd, 2020 AT 8:53 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi,

I thought that is what was needed. LoL

Here are the power-train control schematics. Let me know if this helps. Please remember, these are from a C230.

Joe
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 5:11 PM

Please login or register to post a reply.

Related Engine Low Power Content

Fix an Engine with Low Power!
VIDEO
Fix an Engine with Low Power!
Instructional repair video
Symptoms of Low Engine Power
GUIDE
Symptoms of Low Engine Power
The power your car's engine is producing is important. When you step on the gas you need your car to accelerate, mainly to keep you out of trouble when getting onto the...
VIEW MORE

Sponsored links