W204 C200 CDI max. speed 150kmh (HELP)
07-25-2017, 05:21 PM
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w204 C200 2008
W204 C200 CDI max. speed 150kmh (HELP)
Hi,
I do not usually do this but this time I need to cry for help
My beloved W204 C200 CDI is seriously ill.
Today I tested my car on straight part of non busy motorway to prove my concerns and it looks like my car does not go faster than 150kmh (around 95mph).
When I reach this speed it starts to shake (literally entire car is shaking), RPM does not go up so as speed.
I logged this situation using OBD-II device and Torque Android App (link attached below). When you click on this link you will be able to see the part when I started to accelerate till I released the "accelerator pedal" to start losing the speed.
The RPM from from 2900 to 2400 is exactly the point when I changed the gear from 4th to 5th
It looks like turbo is reaching around 22psi (1.5 bar) and the rpm reaches 2700 RPM on 5th gear and that's it.
To remove shaking during drive i did so far:
1) Replaced all tyres and balanced the wheels (perfectly balanced now)
2) Replaced brake discs and pads in front and back
3) Diagnosed the tow bars and all other connections to wheels (only the ones close to wheels) by car mechanic.
All seems to be ok. No error codes on my OBD device although I had something with "low O2 circuit Sensor 1 Bank 1" but when I cleared it in the morning it didn't come back
Please help
ps. I will book MB Specialist for Monday morning to do final check by specialists as well...
ps1. EGR is cleaned (did recently), oil + all filters (air, fuel and cabin) replaced and I usually use BP Ultimate Diesel fuel
Link to my Torque App logs (also attached to the post):
https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf"]https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf"]https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf
I do not usually do this but this time I need to cry for help
My beloved W204 C200 CDI is seriously ill.
Today I tested my car on straight part of non busy motorway to prove my concerns and it looks like my car does not go faster than 150kmh (around 95mph).
When I reach this speed it starts to shake (literally entire car is shaking), RPM does not go up so as speed.
I logged this situation using OBD-II device and Torque Android App (link attached below). When you click on this link you will be able to see the part when I started to accelerate till I released the "accelerator pedal" to start losing the speed.
The RPM from from 2900 to 2400 is exactly the point when I changed the gear from 4th to 5th
It looks like turbo is reaching around 22psi (1.5 bar) and the rpm reaches 2700 RPM on 5th gear and that's it.
To remove shaking during drive i did so far:
1) Replaced all tyres and balanced the wheels (perfectly balanced now)
2) Replaced brake discs and pads in front and back
3) Diagnosed the tow bars and all other connections to wheels (only the ones close to wheels) by car mechanic.
All seems to be ok. No error codes on my OBD device although I had something with "low O2 circuit Sensor 1 Bank 1" but when I cleared it in the morning it didn't come back
Please help
ps. I will book MB Specialist for Monday morning to do final check by specialists as well...
ps1. EGR is cleaned (did recently), oil + all filters (air, fuel and cabin) replaced and I usually use BP Ultimate Diesel fuel
Link to my Torque App logs (also attached to the post):
https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf"]https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf"]https://docs.google.com/spreadsheets/d/1-IDYptKcv0a4d2MpnHRCNkOSK1twbXB7PXbsT03OxZg/pub?gid=1518832176&single=true&output=pdf
Last edited by snky1987; 07-25-2017 at 05:24 PM.
07-28-2017, 08:25 AM
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w204 C200 2008
I just came back from Star Diagnostics check.
No faults on gearbox at all.
The error that shown was: 2064-007
"The electrical line between B50 (fuel temperature sensor) and N3/9 CDI control unit has open circuit / short circuit to positive"
In garage they said the the fuel temperature sensor (000 905 08 00) died and it needs to be replaced (£85+VAT from dealer).
Doesn't it seems weird that temperature sensor causes the power loss (huge in my case) and causes the car th shake ? Or were they right and there relation between my symptoms and the faulty sensor.
Also shall I definitely replace it or is it possible to clean it (like with MAF issues) ?
No faults on gearbox at all.
The error that shown was: 2064-007
"The electrical line between B50 (fuel temperature sensor) and N3/9 CDI control unit has open circuit / short circuit to positive"
In garage they said the the fuel temperature sensor (000 905 08 00) died and it needs to be replaced (£85+VAT from dealer).
Doesn't it seems weird that temperature sensor causes the power loss (huge in my case) and causes the car th shake ? Or were they right and there relation between my symptoms and the faulty sensor.
Also shall I definitely replace it or is it possible to clean it (like with MAF issues) ?
07-29-2017, 05:22 PM
#3
Senior Member
I think best follow the shops advice you were told what the problem was and it required a $85.00 sensor, trying to fix a failed sensor is wasting time.
Last edited by NZ-Merc; 07-29-2017 at 05:24 PM.
