Q: Car starts and runs but dies after 4-10 minutes, will not restart...leave overnight, same all over again.

asked by on March 05, 2017

Bought car from a guy after fuel pump quit...installed two NEW fuel pumps....have good flow at the fuel distributor...new battery, new spark plugs...started and ran great...but dies and will not restart....Twice had to tow it home after a short drive....read 8 pin codes, nothig except SRS and AC...nothing that would affect running. Mechanic says fuel air mixture..or electrical....I am thinking idle control valve or O2 sensor....will invest some money if you really know MBZ and can give some suggestions....or it has to be towed to the shop...and checked out....which will maybe cost a couple hundred.....plus repairs!...So.....thanks!

My car has 225 miles.
My car has an automatic transmission.

Car is stalling Inspection $79.99 - $99.99 Get a Quote

Your car uses the old Bosch KE injection system. It is a mechanical, electronic combination system that has the unique ability to run (though not very well) with the electronics not working at all, You might find that the section of the fuel pump relay that powers up the ECU is dead. Another common failure on the old Benz is the ignition module, it’s a small part, but it’s pretty expensive so you’ll want to do some proper diagnostic work before buying anything. If this sounds like it’s getting too complicated You can have a technician come out to your home or office to check out your Mercedes and let you know what the problem is and what you can do about it.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

I have a 2012 Jeep [Compass](/topics-compass/) that has a red lightning bolt light and check engine light that is intermittent. I replaced the throttle body and the accelerator pedal sensor. I did the recalibration with the pedal and all lights stayed off for about 30 min. Then they came back. I went back through made sure all.of the connections and the hoses were tight and good. Started it up and same thing. I had a friend with a shop scanner come and check and he saw circuit A and B looked good they were running the same however while it sat idle the red lightning bolt came up. I don't know what to do next.

Replaced front suspension got aligned new tires , steering shudders at low turning speed still chevy silverado 2004 1500

Hi Houston. Thanks for contacting us today. Sometimes when multiple components are replaced, and adjustments made, it will highlight other parts that were not replaced that might be loose or wearing out. Based on what you've indicated in your question,...

2003 trailblazer car starts but wouldn't move when I put it in drive or reverse yesterday. This morning it drove fine.

Hello, thank you for writing in. Typically no response from the transmission is a sign of a failed hydraulics. This is most commonly caused by low transmission fluid, a clog or hydraulic valve issue, or transmission failure. You will want...

windshield wipers won't turn off.

Hi there. First remove the wiper fuse from the fuse box or remove the battery cables. Then replace the wiper selection switch. The switch is stuck in the on position and will not release. If you need further assistance with...

grinding noise while driving straight?

A possibility is a faulty wheel bearing. Less common possibilities are interference with the brake rotor and transmission failures. A faulty wheel bearing can be diagnosed, on the road, by driving the car in such a way that you "sequentially...

No injector pulse but does spark.

Hello There, You are correct in that if the crankshaft position sensor or the pickup coil were bad there would likely not be any spark to the plugs. In relation to your no injector pulse problem, check the wiring harness...

P0101 MAF Sensor

Hi there. Typically, a P0101 (mass airflow sensor circuit/range performance) code can be resolved by cleaning the heated wire. Aftermarket air intake systems and poorly sealed factory air filters can contaminate the heated wire of the MAF. The engineers designed...

engine light

Your check engine light may come on for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or wires and many other reasons. Unfortunately due to the...

Related articles

How Can I Keep My Fuel System Clean?
Proper Proper maintenance of the fuel system is crucial for consistent long-term performance of a vehicle. The most easily clogged parts of the fuel system are the fuel injectors themselves. There are a number of ways this can happen: ...
How Long Does a Fuel Rail Sensor Last?
The The amount of pressure that is in a car’s fuel system is important and something that is heavily monitored. Without the proper amount of fuel pressure, the gas will not be able to properly circulate. This lack of circulation...
The Most and Least Expensive Cars to Insure
Car insurance quotes depend on the car make and model. The Honda Odyssey is the least expensive and the Dodge Viper is the most expensive to insure.