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.
1988 Audi 5000 CS, AutomaticFACTORY OEM SERVICE PROCEDURE
BOSCH Cis-E III System
- Description
- Operation
- Testing Precautions
- Testing
- Differential Pressure Regulator
- Carbon Canister Shutoff Solenoid
- Cold Start Valve
- Idle Stabilizer Valve
- Fuel Injection System
- Oxygen Sensor
- Fuel Pump Relay Control
- A/C Compressor Clutch (On/Off Signal)
- Coolant Temperature Sensor
- Altitude Sensor (Voltage Supply)
- Idle & Full Throttle Switch
- Idle Switch
- Full Throttle Switch
- Idle Stabilization (Shift Mode Signal)
- Trouble Codes
- Clearing Trouble Code Memory
- Trouble Shooting Trouble Code Memory
- Ignition Coil Assembly
- Hall Sender
- Removal & Installation
- Adjustments
- Wiring Diagrams
Factory Service Tools
Use the Manual With the Right Hardware
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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.