Q: My BMW e46 does not have a full power ?

asked by on August 13, 2016

why? I drive a BMW e46 320i 2001 model, I changed a clutch kid, petrol pump, spark plugs oil and oil filter and oil separator but still it increases the speed slowly especially in the morning when it is cold but during a hot day it performs much better. The temperature gauge takes a very long time to reach the optimum/operation temperature. What could be the cause of this problem guys?
My car has a manual transmission.

Your issue seems to be temperature related. Taking too long to reach proper operating temperature can be cause by two things. First thing I would check is if either the electric cooling fan is running all the time no matter the temperature. Related would be checking the engine-driven fan clutch. If the fan clutch is seized, then it may be pulling too much air through the radiator when it is not needed. Secondly, I would check to see if the engine thermostat is stuck in the open position. The thermostat should remain closed until the coolant reaches proper operating temperature. If you would like to consult an expert to see this in person, a certified technician from YourMechanic can come to your home or office to inspect your vehicle’s loss of power and let you know what needs repair.

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

lost all oil pressure, replaced the oil pump, low oil sensor, oil pressure sensor, oil pan gasket,

The fuel pump will not stay on if you loose oil pressure. This is why it is shutting off. The loss of oil pressure may be from bad crankshaft bearings or camshaft bearings. The engine oil pan should be removed...

Water leak in my rear passenger foot well

There may be no easy answer for this. Modern cars are so thoroughly insulated and sealed, and the interior structures are so complex that it can be very difficult to find the kind of leak that you're looking for. It...

When start car, engine clicks and clacks - 2008 BMW 528i xDrive

There is a BMW Technical Service Bulletin (BMW SIB 11.09.07) that addresses the click/clack noises you mention. Check with your dealer to be sure it applies to your vehicle. The low rev limit (2000 rpm) is a bit more puzzling....

Related articles

A Buyer’s Guide to the 2012 BMW X5
The The 2012 BMW X5 is an SUV that offers both utility and ease of driving. The steering is responsive with a good amount of horsepower. If you are looking for a sportier SUV that offers versatility, the BMW X5...
5 Essential Things to Know About Luxury Vehicles
There’s There’s something to be said about the looks and offerings of luxury vehicles, but appearances can always be deceiving. If you’re considering buying a luxury car, there are a few things you need to know before you make your...
A Buyer’s Guide to the 2011 BMW X6 ActiveHybrid
This This “Sports Activity Vehicle” – a moniker bestowed by its maker – is one of those few cars that toes the line between SUV, hatchback sedan, and a just plain quirky car. Regardless of its true identity, however, the...