Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Oil Pressure, Checking
Special tools and workshop equipment required
- Oil Pressure Gauge V.A.G 1342
Test Prerequisites
- Oil level OK
- Engine oil temperature at least 80 °C (176 °F) (radiator fan must start up once).
Test Sequence
Place a cloth under the accessory assembly bracket to collect leaking engine oil.
-- Disconnect the electrical connector -4- on the reduced oil pressure switch -F378-.
-- Remove the reduced oil pressure switch -3-.
-- Screw the V.A.G 1342 into the oil filter bracket in place of the oil pressure switch.
-- Install the reduced oil pressure switch -- in the V.A.G 1342.
-- Start the engine.
- Oil pressure at idle: 1.2 to 2.1 bar.
- Oil pressure at 2000 RPM: 1.6 to 2.1 bar positive pressure.
- Oil pressure at 3700 RPM: 3.0 to 4.0 bar positive pressure.
During the break-in phase, the oil pressure may be at 2000/min at 3.0 to 4.0 bar.
Assembling
- For the correct tightening specifications, refer to OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW .
-- Install the oil pressure switch.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.