What's the BMW X5 e53 glow plug control unit location?

The BMW X5 E53's glow plug unit is installed on the passenger side of the engine under the exhaust manifold in the engine bay. A cable runs between the battery and the glow plug module and operate using 25 amps of charge. Glow plug failure signs in a BMW include white or black smoke from the exhaust, hard starting, rough idling, mIS Fires, stalling and hard starting. GP's are a key part of a diesel engine and are responsible for warming fuel and air to temperatures optimal for combustion in the motor. They are considered a heating element crucial to both operating power and fuel economy. The average cost to have them replaced is between $600-$800 in parts and labor.