BMW has extended the warranty on the high-pressure fuel pump for the 2012 X5 M and X6 M models with the S63 engine. The warranty covers the pump for 10 years or 120,000 miles. BMW is not recalling the pump and no reason was given for the extension of the warranty.
In the case of a direct fuel injector where the tip is exposed to the combustion event, carbon can stick to the nozzle and cause a bad spray pattern, because carbon searches for other carbon.
In the U.S., the quality of the fuel we put into our vehicles is very high. By the time it travels through the fill neck, it has been filtered twice at the station. Before it gets to the fuel rail, it has been filtered by a sock in the tank and a filter under the car. So why do direct and port fuel injectors still become clogged or have spray pattern problems? The answer involves a little bit of chemistry and a lot of heat.
A DCT transmission uses the gearing principles of a manual transmission.
Fasteners act much the same as a spring due to the physics of stretch and rebound.
Variable-length intake runners change the length of the intake passages depending on engine speed and load.
Before removing the driveshaft, check for play in the yoke and slip joint. If the u-joints are failing, you should be able to see movement in the shaft as you apply leverage.
The issue is likely because the connection between the LED module & light tube inside.
The transfer case is a rather unique design in the way that it operates a clutch pack mechanically, not hydraulically.
The measurement of voltage is like the speed of the traffic.
Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.
