Porsche
Diagnostic and Repair Information ,Wiring Diagrams. DTC. TSB. Types: TSB, DTC, Wiring Diagrams, OEM Procedures. Trusted by more than 400,000 technicians. OEM accurate fix for faster repairs. Repair Procedures and Labor Times. Factory Auto Repair info. Request A Demo Today. Factory-Correct Diagrams. Factory Part Numbers. Maintenance Schedules. Repair Procedures. Labor Times. Types: TSB, DTC.car insurance, auto insurance, auto, car, vehicle, insurance, quote, quotes, online, insurance,auto, autos, car, cars, vehicle, vehicles, used car, pre-owned car, pre-owned vehicle, used auto, used vehicle, rental,auto racing news, car racing news
P0494
P0494
Diagnosis information - DME V6 DFI Fan stiff
WARNING:
Danger of injury:
The fans can start at any time if the air-conditioning system is switched on and / or if the engine is at operating temperature.
Diagnostic conditions
- Time after engine starts greater than 10 seconds
- Air-conditioning system on or
- Engine temperature > 93 °C (199 °F)
Possible fault causes
- Electromagnetic disturbances
- Fan 2 (small / left) sluggish
- Fan 2 (large / right) sluggish
- Both fans sluggish