Problems for specific Volkswagen Jetta years:
Problem Reports
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2005 Volkswagen Jetta Problems
High Mileage Automatic Transmissions May Have Shifting Problems
Shifting issues due to internal problems in high mileage automatic transmissions can be difficult to resolve without transmission replacement.
Power Window May Fail Due to Window Regulator
One or more power windows may fail. Our technicians tell us this is commonly due to a failed window regulator which will require replacement.
Reverse Gear Failures and/or Noise From Manual Transmission
Reverse gear failures and noise in the manual transmission models are common.
Difficult to Diagnose Electrical Issues Are Typically Due to Ground Issues
Electrical issues that are difficult to diagnose—and sometimes intermittent—are typically due to ground wiring issues. The most troublesome ground locations are under the battery or at the engine.
Engine Overheating Due to Damaged Water Pump Impeller
A damaged water pump impeller may cause an engine overheating condition. Our technicians tell us the repair should include replacement of the water pump, thermostat, and flushing the cooling system.
Odor From HVAC Vents
Condensation in the heater case may cause a musty odor from the heating, ventilation and AC (HVAC) system after sitting for two hours or more. Our technicians tell us that a cleaner is available for the heater case and the drain system should be checked for debris.
Engine Misfire Due to Failed Ignition Coil, Spark Plug, or Ignition Wire
An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light. Vehicles equipped with spark plug wires may also develop a misfire caused by a failed spark plug wire.
Wrong Anti-Freeze/Coolant May Cause Heater Core Leaks
Heater core leaks are common in this model, more so if the wrong anti-freeze/coolant is used in the cooling system.
Flasher Relay Failure Can Cause Erratic Turn Signal Operation
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
Coolant Leak From Oil Filter Housing O-ring
A coolant leak may develop after oil filter replacement. The coolant o-ring seal can be damaged if the oil filter housing turns when removing or installing the oil filter. The recommended procedure is to hold the filter housing when tightening or loosening the oil filter.
Check Engine Light Due to Ignition Component/Engine Coolant Temperature Sensor Failure
Due to an ignition component and/or engine coolant temperature sensor failure, the Check Engine Light may illuminate. Replacement of the failed component will be necessary to correct this concern.
Coolant and Oil Leaks
The water pump and/or other cooling system may develop a coolant leak. Oil leaking from the valve cover gasket is also common.
Engine Oil Leaks
Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.
Shifting/Drivability Issues Due to Throttle Body Failure
Throttle body failure is not uncommon and can lead to shifting issues with the automatic transmission and other drivability concerns.
Inspection of Water Pump and Timing Belt
The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.