Skip the auto shop - Our mechanics make house calls

Q: During highway driving continuous loss of speed - 2010 BMW 335d

asked by on

After about 10 minutes of driving at highway speed, there was a loss of speed five different times. It had that feeling that I had let go of the gas pedal, but I never did. Then the car stalled at 67 mph. I did my best to get to the shoulder of the highway and then tried to start the car, but it would not start. For about 10 minutes I kept trying to start it. Then I waited ½ an hour and it started. What caused this and how should I proceed to fix it?

A: There are known issues with premature carbo...

There are known issues with premature carbo buildup in the intake system causing driveability issues with this model. I would check with the dealer for service bulletins for the engine system and driveability issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: While decreasing speed, car independently accelerated - 2009 BMW 335d

At that speed, it sounds like a "confused" cruise control. I would try turning off the cruise control, turning off the engine (while parked of course), then restarting both. If this doesn't correct the problem, continue seeking assistance from your...

Q: The car turns over but will not fire...

Hello there, many different faults could cause your 1999 Subaru Legacy to not start after the cylinder head rebuild. There are a few common problems that could cause it to not start such as a connector left unplugged, timing that...

Q: Why does my interior lights flash on and off sometimes when I flip my dimmer switch?

Hello and thank you for contacting Your Mechanic. The dimmer switch has a connection for the dome light and controls the dash lights with using resistance. The problem is the dimmer switch contacts have corrosion inside them and have created...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.