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Bmw M3 U1102 Engine Error Code

When you check Bmw M3 car engine light came on code U1102 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Bmw manufacturer may have a different definition for the U1102 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1102 Bmw M3 Code Clear

Another consequence of U1102 Bmw M3 engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

U1102 Code Reason

Bmw M3 U1102 OBD-II Diagnostic Network (U) Trouble Code Description

U1102 SCP (J1850) Invalid or Missing Data for Primary Id so you have to check ODB-II Engine Error Code list.

Reason For Bmw M3 U1102 Code

The reason of Bmw M3 U1102 OBD-II Engine Error Code is U1102 SCP (J1850) Invalid or Missing Data for Primary Id.

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the U1102 Bmw M3 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

Bmw M3 U1102 Possible Solution :

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

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