Q: Car won't idle, sputters and shuts off. 1995 BMW 318is

asked by on

The car wouldn't start when I purchased it, but it was a bargain so I took it and planned to repair it. The fuel pump went bad, so I had it replaced and now the car starts right up. However, the car has idling problems. Each time in neutral, it would start sputtering and shut off. If the gas is applied in neutral, it has no issues. When I checked the oil, I think there was some coolant in it. I had the oil and fuel filter replaced also. Later I checked the oil and it had no traces of coolant in it. What might be the issue with the car and how costly would the repair be?

Hello there, a few different faults could cause this issue on your 1995 BMW 318is. When oil and coolant mix, the usual suspect is the head gasket. The mixing of coolant and oil may take some time to develop and is usually associated with the engine overheating.

For the idling issues in neutral, this could also be linked to the head gasket issue, or a vacuum leak, MAF sensor, low fuel pressure, spark plugs, or coil. In cars where a head gasket is suspected it should not be driven to avoid overheating the vehicle or causing further damage. A qualified technician, such as one from YourMechanic will be able to inspect the vehicle to determine what is causing the idle faults and stalling issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car won't idle, sputters and shuts off. 1995 BMW 318is

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: After replacing radiator started fine twice then third time wouldn't start

If the engine cranks at adequate RPM, be sure there is adequate fuel in the fuel tank and that the fuel is not old. Download any OBD-I trouble codes that have been stored and examine those codes for diagnostic clues....

Q: Speedometer and fuel gauge faulty 1999 Toyota Corolla

Hi there - first thing to check is fuses for these gauges. Did they "fail" at the same time? If so, a blown fuse is likely. If not the sensors for each (both of which are electronic) are suspect. Bad...

Q: Car overheats while idling

It sounds like you may have a problem with rust an scale build up in the engine. This build up may have worn the impeller on the water pump and this is why it only overheats at low engine RPMs....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.