Q: SUV will not accelerate sporadically and has no power

asked by on

SUV was running fine until had a regular oil change. After that SUV had sporadic bouts of no acceleration otherwise ran fine. When I mean no acceleration I mean that you could put the pedal to the floor and it would only accelerate much later like a 1-5 minute delay. This car new was to go from 0-60 in under 9 seconds if I read everything correctly. No check engine light ever came on until about 2 weeks ago when it gave a code to the Advance Auto Parts guy saying no Turbo Boost. This is a 2008 Mercedes ML 320 CDI (Diesel) 4 matic and I need it to run because I have to go to work regardless of the weather. It has a turbo diesel system. I have all sensors replaced, I run the best diesel gas, and no one can figure out the problem. Worse now since yesterday I went to start the SUV and it started but would not complete the process to stay running. I think you refer to this as the engine would turn over but that was it. Please help winter weather is coming and I have to work. Thanks much.

My car has 183000 miles.
My car has an automatic transmission.

Hi there:

To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you’re describing, ranging from something simple like a crankshaft position sensor to the throttle position sensor or complex issues with the turbo on your ML320.

The best way to simplify the process for diagnosing this problem and ensure the right repairs are completed is to have a mobile mechanic from YourMechanic visit you and start with a Check Engine Light inspection. Even if the light is not illuminated, it’s highly possible that error codes are stored in the vehicle’s ECU. This inspection will allow the mechanic to pull those codes and give them a starting point to diagnose the issues and recommend the right repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. SUV will not accelerate sporadically and has no power

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Car hesitates when I accelerate

There are many possible reasons as to why a vehicle may hesitate on acceleration. If the Check Engine light has come on I would recommend having the vehicle scanned for trouble codes. Modern gasoline engines run highly sophisticated engine control...

Q: Egrcode multiple cylinders misfire

The most likely issue in this situation is with the EGR valve. Problems with the EGR system can lead to misfires. The exact problem with the EGR will need to be diagnosed with some further testing. The EGR valve itself...

Q: Q: Car shut off while driving

Without additional information, it is hard to say what could have caused this. Your car has a variety of sensors that can cause it to shut down depending on whether or not everything is functioning correctly. I would suggest having...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...