Q: Stalls idling cold start - 1983 Mercedes-Benz 380SL

asked by on

I have a 380 SL that’s been sitting for 5 + years that I’m trying to get running again. The first thing that it did was that it wouldn’t start. So I cleaned out the gas tank, replaced the fuel pump, fuel filter, fuel accumulator, fuel pressure regulators, coil, EZL ignition control module and warm up regulator. I got a new battery, Bosch plugs and cleaned out the idle air control valve with carburetor cleaner. Now it will start when the engine is cold, but it stalls when trying to idle. It will run smooth from a cold start if I keep my foot lightly on the gas pedal. Maybe I should replace the injectors or the idle control unit. What do you think I should do?

Hello. Before replacing the fuel injectors my recommendation would be to have a fuel injector cleaning done. The injectors may still need to be replaced to solve your problem, but this is a good place to start.

The idle control unit may need to be replaced as well in order to solve the problem you are experiencing. The mass airflow sensor may need to be cleaned as well as checked for any vacuum leaks in the engine. For more help having this checked, have a certified technician, like one from YourMechanic, diagnose the stalling issue in order to have this corrected.

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. Stalls idling cold start - 1983 Mercedes-Benz 380SL

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: Engine reduced power - 2008 Cadillac CTS

Hi there. The issue you're describing indicates that your CTS may have entered a "limp mode". This situation is caused by a sensor that discovers a problem within your transmission. When the issue is found, an error code is registered...

Q: Oil leak coming from behind intake and transmission.

You could have a couple causes of the oil leak at back of intake manifold. This engine oil pressure sending unit is the most common leak in this area of the engine. Replace oil pressure sender if leaking. The best...

Q: Problems going to reverse on a T 150

The first thing you'd want to think about is: does it do it in reverse and drive? If it only does it in reverse, you either got a problem with the transmission or your differential, the rear differential. One of...

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...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...