002A82

What Code 002A82 Means

Code 002A82 (Einlass-VANOS) points to a fault in the intake camshaft timing system. On the N52B30O0 (N52) engine, VANOS controls intake camshaft position through a hydraulic mechanism driven by a solenoid valve. The DME (engine control unit) compares the target and actual camshaft position and sets the fault when they deviate.

In this case the fault appeared on a BMW E90 330i with the N52 engine at a mileage of 105,000 mi. The fault memory also held codes 002A87 (Auslass-VANOS, Mechanik), 009315 (KOMBI), and S 0375 (no connection to head unit). Code 002A82 falls under the vanos category and is rated moderate severity.

The VANOS system includes solenoid valves, hydraulic circuits, and mechanical parts (pistons, springs). A fault can come from an electrical failure in the valve, mechanical wear, or contamination.

Symptoms

• Slight judder in 3rd gear while coasting downhill at idle speed.
• After the Einlass-VANOS fault returned: noticeable power limitation and a distinct judder/stumble under acceleration around 3,000 rpm.
• Yellow Check Engine light after a normal drive.

Diagnosis and Repair

Work Performed

• Replaced DISA Klappe groß (it was broken).
• Replaced DISA Klappe klein.
• Replaced KGE komplett.
• Solenoid valves were not replaced again, since they had been replaced about 8 months earlier (original).

Result

No faults after this work. Later the Einlass-VANOS fault came back, was cleared after a short pause, and a re-read showed nothing.

Further Diagnostic Steps

If code 002A82 returns, check:

• Electrical connectors and wiring to the VANOS solenoid valve.
• Solenoid valve coil resistance.
• Contamination in the hydraulic passages and mesh filters.
• Mechanical condition of the VANOS piston and spring.
• That the DME is working correctly and no other faults are affecting VANOS.

Use BMW diagnostic equipment (ISTA, INPA) to read camshaft position and valve control parameters.

Secondary Problems

No data.