850 / 850 T-5R / 850R

1991-1997 / Sedan / Estate / Sweden

All 850 / 850 T-5R / 850R problems All workshop issues

Critical Fuel System

Fuel Pressure Regulator Leaks

Symptoms

Fuel smell in the cabin or engine bay. Poor idle, hard starting. You might see fuel leaking from the regulator on the fuel rail.

Cause

The diaphragm inside the regulator perishes.

Fix

Replace the fuel pressure regulator. It's on the fuel rail, easy to access. $100-150 for the part, 30 minutes to fit.

Cost mentioned in fix

$100-150 for the part

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Other known issues

Common Fuel System

Fuel Pump Failures

The car cranks but won't start, or it starts then dies. You might hear the fuel pump whining or buzzing loudly, or complete silence from the tank when you turn the ignition on.

Common Engine

PCV System Oil Leaks and Breather Box Failures

Oil everywhere, particularly around the back of the engine and firewall. You might see smoke at idle or a rough idle. In severe cases, the turbo oil feed line can blow apart because the crankcase is pressurised like a balloon.

Critical Engine

Timing Belt and Water Pump

The engine suddenly stops. If you're lucky, nothing else happens. If you're not, you've just destroyed pistons, valves, and possibly the head. This is an interference engine.

Critical Engine

Oil Consumption (Turbocharged Models)

You're adding a litre of oil every 1000-2000 km. Blue smoke on startup or under boost.

Common Engine

Turbo Failure (T5 and 850R)

Loss of power, screaming noises, oily exhaust smoke. The car feels gutless and the boost gauge stays flat.

Common Cooling System

Radiator and Expansion Tank Cracks

Coolant loss, overheating, the temperature gauge climbing past 12 o'clock. You might see pink coolant pooling under the car or steam from the bonnet.

View all 26 850 / 850 T-5R / 850R problems