1998 BMW 528 Car won't go fast enough

1998 BMW 528
154,700 MILES • 6 CYL • 2WD • AUTOMATIC
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HOTCADDY02
  • MEMBER
  • 2 POSTS
Hi
I am having some issue with my BMW 528I. Until the engine warms up or being on idle for 5 to 10 min. the car won't go fast at all. Even if I step on the speed pedal hard and RPM gets over 4. The car drives very slowly. Any help would be appreciated.
Mar 24, 2008 at 3:26 PM
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PEAR69
  • ✓Experienced Mechanic
  • 1,482 POSTS
Do you mean that you are going fast with a cold engine? If so, that is a very bad idea. How fast are we talkin'?
Your engine oil needs a chance to warm up so it can flow through your engine and provide a hydraulic wedge between moving metal parts. When oil is cold it acts like cold syrup. It clings to metal parts instead of flowing. This clinging slows down the power output of the engine until the oil warms up. That is why all race cars warm up the oil before they even turn over the engine.
Your engine may also have a oil flow sensor that controls the power output based on the oil temperature.
Mar 24, 2008 at 3:40 PM
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