BMW , 3 Series , E36 , 325td (1991-1998) Common Issues

Most Common Issues:

1. Oil leaks from valve cover gaskets (70-80% of all 325tds)
2. Coolant leaks from water pump and thermostat housing (40-50%)
3. Rear main seal failure (30-40%)
4. Exhaust system corrosion and rust-through (20-30%)
5. Transmission slipping or hesitation on acceleration (15-25%)

Moderately Common Issues:

1. Timing chain tensioner failure (10-20%)
2. Intake manifold gasket leaks (10-20%)
3. PCV valve clogs and vacuum hose failures (8-18%)
4. Front control arm bushing wear (5-15%)
5. Rear subframe rust-through (5-15%)

Less Common Issues:

1. Engine oil pressure sensor failure (2-8%)
2. Alternator belt slippage or breakage (2-8%)
3. Power steering pump failure (2-6%)
4. Brake system leaks and wear (2-6%)
5. Rear axle bearing failure (1-5%)

Rare Issues:

1. Turbocharger oil line leakage (less than 1%)
2. Engine block crack or warping (less than 1%)
3. Crankshaft seal failure (less than 1%)
4. Transmission input shaft bearing failure (less than 1%)
5. Rear main seal housing corrosion and failure (less than 1%)