Q: Car sputters and runs rough upon acceleration. 1995 BMW 318i

asked by on August 31, 2016

The car has been having acceleration problems lately. It starts well. There is no problem during idling either. However, when I start driving and start accelerating, the car begins sputtering and running rough. What might cause this?

Hello. Thanks for writing in about your 1995 BMW 318i. This problem is usually caused by worn out spark plugs and spark plug wires. When the spark plugs are worn out they don’t fire as well during acceleration. If the spark plug wires are bad this will make the problem worse. Have a certified technician, like one from YourMechanic, come and complete an inspection in order to pinpoint the hesitation problem and make the necessary 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

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

Car doesn't run right - 2005 Chevrolet Impala

Hello and thank you for contacting YourMechanic. You will need the check the idle air control valve (IAC). It is located just under the throttle body where the throttle plate is. Unplug the harness and check the plug for any...

My car has no electrical power and there is a blown 80 amp fuse under the hood

It sounds like you have a ground issue. Check the ground wires from the battery to the fuse box. Make sure that the cables are tight and free of corrosion. Check the condition of the battery terminals for corrosion and...

Difficulty shifting into third gear

Hello. There could be a problem with the shifter cable or the shifter linkage from the transmission to the shifter. There also could be a problem with the slave cylinder, causing it to be hard to shift at times. A...

Related articles

The Importance of Warming Your Car Before Driving
Scandphoto / Shutterstock.com Many people feel that it’s important to warm a vehicle up before driving off. This has long been the dominant school of thought, dating from when cars had carburetors and many would not run...
Understanding the BMW Condition Based Servicing and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The BMW Condition Based Servicing system indicates when and what service your car needs.
A Buyer’s Guide to the 2012 BMW X6
The The X6 is a study in identity crises. While the sleek fastback styling and cozy interior suggest a sporty coupe, the hatchback and SUV platform speak to a weak attempt at imitating a wagon (without the roomy passenger capacity)....