2002 / 2002tii / 2002 Turbo

1968-1976 / Sedan / Germany

All 2002 / 2002tii / 2002 Turbo problems All workshop issues

Common Fuel System, Kugelfischer Injection (2002tii)

Warm-Up Regulator Failure

Symptoms

Poor cold-start behaviour, the engine is hard to start when cold, runs roughly for several minutes, or stalls repeatedly during warm-up.

Cause

The warm-up regulator is a thermostatically controlled device that enriches the fuel mixture during cold start. The bimetallic strip that controls the enrichment weakens with age, and the fuel passages can become blocked.

Fix

Rebuild or replace the warm-up regulator.

Adjustment is possible but requires specialist knowledge of the system.

Cost: $200-500.

Cost mentioned in fix

Cost: $200-500

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// More 2002 / 2002tii / 2002 Turbo problems

Other known issues

Minor Fuel System, Kugelfischer Injection (2002tii)

Injection Pump Wear and Calibration Drift

Flat spots in the throttle response, rough idle, poor cold starting, uneven fuel distribution between cylinders, black smoke, loss of power.

Critical Engine, M10 (All Models)

Timing Chain Tensioner Wear

A rattling or slapping noise from the front of the engine on cold start, which may quieten as oil pressure builds. In severe cases, the rattle persists when warm. If ignored, the chain can skip a tooth, altering valve timing and potentially causing valve-to-piston contact.

Critical Engine, M10 (All Models)

Oil Leaks, The M10 Weeps From Everywhere

Oil residue on the engine block, oil drips on the garage floor, burning oil smell from the exhaust manifold. Common leak points: rocker cover gasket, oil pan gasket, rear main seal, timing chain cover gasket, distributor shaft seal.

Minor Engine, M10 (All Models)

Overheating

Temperature gauge climbs into the red zone, particularly in slow traffic or on hot days. Coolant may boil over. Persistent overheating causes head gasket failure and head warping.

Common Engine, M10 (All Models)

Valve Clearance Drift

Ticking noise from the valve train that changes with engine temperature. Loss of power and rough running if clearances become too large or too small.

Common Fuel System, Carburettor (Base 2002)

Carburettor Wear and Maladjustment

Poor idle quality, hesitation on acceleration, rich running (black exhaust smoke, fuel smell), lean running (backfiring, overheating), poor fuel economy.

View all 17 2002 / 2002tii / 2002 Turbo problems