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.
1983 Audi 5000 BaseFACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Switches
SWITCHES LOCATION
| Component | Location | |
|---|---|---|
| A/C-Heater Blower Speed Resistor Overheat Switch | In left half of heater housing. | |
| A/C-Heater Deflector Switch | On lower lever of control panel. | |
| A/C High Pressure Switch | In high pressure line, near VIR. | |
| A/C Kickdown Switch (Auto. Trans.) | Under accelerator pedal. | |
| A/C Superheat Switch | In A/C compressor. | |
| A/C Thermo Switch | In coolant supply hose, near expansion tank. | |
| A/C Wide Open Throttle Cut-Out Switch (Auto. Trans.) | Under left side of dash. | |
| Back-Up Light Switch (Auto. Trans.) | On gear shift selector bracket. | |
| Back-Up Light Switch (Man. Trans.) | On right of gearshift housing. | |
| Boost Pressure Safety Switch | In hose leading to intake manifold. | |
| Brake Fluid Level Switch | In brake fluid reservoir cap. | |
| Brake/Stop Light Switch | On pedal hanger, at top of brake pedal. | |
| Cold Start Thermo Switch (Gas) | On rear of cylinder head. | |
| Coolant Temperature Warning Switch | On rear of cylinder head. | |
| Cooling Fan High Speed Thermo Switch (Turbo Diesel) | Below coolant expansion tank. | |
| Cooling Fan Thermo Switch | In lower right side of radiator. | |
| Cruise Control Brake Pedal Switch | On pedal hanger, at top of brake pedal. See Figure . | |
| Cruise Control Clutch Pedal Switch | On pedal hanger, at top of clutch pedal. See Figure . | |
| Dynamic Oil Pressure Warning Switches | ||
| Low Pressure Switch | At rear of cylinder head. | |
| High Pressure Switch | On oil filter bracket. | |
| Freon High Pressure Switch | In high pressure refrigerant line. | |
| Glow Plug Coolant Temperature Switch | In coolant pipe below thermostat housing, or rear of cylinder head (transmission end). | |
| Inj. Fan Thermo Switch (Turbo Diesel) | At rear of intake manifold, near cold start valve. | |
| Neutral/Start Switch | On gearshift selector bracket. | |
| Oil Pressure Switch | On block in front of oil dipstick. | |
| Oxygen Sensor Thermo Switch | In heater by-pass hose, below coil. | |
| Parking Brake Switch | Below parking brake lever. | |
| Seat Heater Thermo Switch | In bottom seat cushion. | |
| Sunroof End Stop Switch | On sunroof motor. | |
| Sunroof 2nd Stage Switch | On sunroof motor. | |
| Throttle Enrichment Switch (Gas) | On throttle shaft above throttle body. | |
| Upshift Ind. Idling Switch (Turbo Diesel) | On sprocket end of injection pump. | |
| Upshift Ind. Load Switch (Turbo Diesel) | Opposite sprocket end of injection pump. | |
| Upshift Indicator Pressure Switch (Gas) | In vacuum hose to distributor vacuum chamber. | |
| Upshift Indicator Top Gear Switch | On transmission. | |
Factory Service Tools
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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.