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.
1994 Audi 90 CS QuattroFACTORY OEM SERVICE PROCEDURE
Rpm Sensor Bracket
- Remove Crankshaft Position sensor (CKP). Position crankshaft at TDC for No. 3 cylinder. See Fig 1 . Screw Crankshaft Positioner (V.A.G. 3242) into sensor hole. Notch in No. 3 cylinder counterweight can be seen or felt through sensor hole in block. See Fig 2 and Fig 3 .
- Remove heat shield. Remove Engine Speed (RPM) sensor and loosen RPM sensor bracket.
- Insert RPM Sensor Gauge (V.A.G. 3308) until locked into gear tooth. Push bracket within slots to ensure sensor gauge is locked into gear tooth. Retighten bracket and reinstall RPM sensor.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.