Q: Brake calipers

Hi, thanks for writing in. Yes, the N52 engine is, generally speaking, a well-developed engine; less complex, and more maintenance-free engine than the newer turbocharged engines available in the 1-series. Make sure the Valvetronic gear (variable valve timing) has NO...

Hello - I suspect the answer to this question revolves around whether you are making other modifications to the engine, and how often you drive with boost pressure near the limit. This device will offer more precise control for managing...

Replacing an engine control module should never be a first step. There are a number of other problems that can give a PO607 trouble code (https://www.yourmechanic.com/article/p0607-obd-ii-trouble-code-control-module-performance-by-brady-klopfer). First the battery voltage should be checked, and if the engine is running, the...

The engine code (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) you are receiving stands for "Intake Manifold Runner Performance Bank 1". This may mean the vehicle is going to need an new intake manifold, or it may mean the VCMA has failed. This has been an...

Sent to CS for billing question on how much it would cost for a tune up for the BMW to pass emissions test. A tune up comes with cleaning out the fuel system and performing a fuel injection flush, replacing...

This may suggest that the instrument gauge cluster is failing or that the odometer has been tampered with. I would recommend taking it into the dealership to have it tested for proper voltage. You may also want to check the...

The tensioner on your vehicle should move more than this. You need to start by checking the drive belt routing. If the belt is not routed right then it will appear that the tensioner is not moving enough. If the...

Hi there. It sounds like you may have saturated the charcoal canister, the vent hose is clogged, or the vent valve on the canister has failed. This part of the canister allows fuel vapor to flow from the fuel tank...

Hi there. Yes the engine is an interference design. This means that if the timing belt breaks the pistons will contact the valve train when not in time. If the belt has broken, I recommend testing the cylinder head and...