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Porsche Problems

Find the most common issues based on Porsche owner complaints.
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Most Common Porsche Problems

Smoke, oil consumption, and fuel trim issues with various fault codes can be traced to an internal leak at the oil separator.
The power windows not lowering when the Cabriolet top latch and/or door handle is operated or lowering unexpectedly while driving can be caused by a failing Cabriolet top or door handle micro swi...
If the vehicle cannot return to run position after start or if the interior fan is not getting power, it may be the electrical portion of the ignition switch has become erratic or has failed. The...
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26 Known Porsche Brakes Problems

Symptoms such as dragging or a stiff pedal can be caused by accumulated water entering the brake booster. The root cause is a plenum drainage issue. Updated parts are available for early-production...
Depending on driving habits, brake pad and rotor wear can be excessive. Our technicians recommend regular brake inspection.
Pay close attention to warning lights and have the brakes inspected regularly—immediately address any brake problems. Hard driving habits will cause excessive brake pad and rotor wear.

27 Known Porsche Drive Train Problems

Abnormal noise may be noted when shifting or reverse gear is selected in vehicles with a manual transmission. If this problem is encountered, proper operation of shift cables and clutch should be v...
An internal transmission problem can cause difficulty engaging or downshifting from second gear. Improved parts are available as of the 1997 model year.
Ring and pinion failure can occur on 4WD versions.

22 Known Porsche Electrical & Lights Problems

The power windows not lowering when the Cabriolet top latch and/or door handle is operated or lowering unexpectedly while driving can be caused by a failing Cabriolet top or door handle micro swi...
If the vehicle cannot return to run position after start or if the interior fan is not getting power, it may be the electrical portion of the ignition switch has become erratic or has failed. The...
If the airbag warning light illuminates, it must be attended to quickly. Seat belt buckles, wiring updates/repairs, and/or airbag module faults may be the cause.

71 Known Porsche Engine Problems

Smoke, oil consumption, and fuel trim issues with various fault codes can be traced to an internal leak at the oil separator.
A no start or stalling condition may develop do to a failing fuel pump. A faulty fuel pump will require replacement. Our technicians recommend to inspect internal fuel tank connections for leaks...
Persistent coolant loss can be caused by a small leak at the coolant reservoir. Our technicians tell us the leak may not be visible due to the trunk carpet hiding the leak.

19 Known Porsche Exhaust & Emissions Problems

A failing mass air flow sensor or EVAP purge valve can cause misfire issues.
Engine vacuum leaks can develop from various locations resulting in illumination of the Check Engine Light.
Various fuel trim and oxygen sensor limit fault codes can be traced to an internal vacuum leak at the oil separator.

4 Known Porsche Heating & Air Conditioning Problems

Climate control modules can be problematic. Symptoms vary but include failure or persistent dead battery after not using the vehicle for a while.
When changing speeds at random or while going over bumps, the interior fan speed can be erratic. A replacement fan control resistor is required.
Due to a failed resistor pack, the HVAC fan may only operate on the high speed setting.

0 Known Porsche Maintenance Problems

12 Known Porsche Miscellaneous Problems

Windows and interior trim can be prone to squeaks and rattles. Numerous, small adjustments may resolve the issue. Additional creaks have been attributed to front and/or rear window fit as well.
The front hood and rear deck lid support struts may fail; replacement is required.
Windows and interior trim can be prone to squeaks and rattles. Numerous, small adjustments may resolve the issue. Additional creaks have been attributed to front and/or rear window fit as well.

11 Known Porsche Suspension & Steering Problems

Fluid leaks at the right rear corner can often be traced to the radial seal at the power steering pump.
Tire wear can be problematic, very dependent on driving style. Our technicians recommend regular tire inspection and replacement when necessary.
In order to avoid ABS, Tiptronic, or intermediate differential faults/warning lights, correct tire profile and wear must be maintained.

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Known Porsche Problems & Complaints

A coolant leak may develop at the thermostat housing, under the intake manifold. Our technicians tell us that revised parts are available to correct this concern.
If the airbag warning light illuminates, it must be attended to quickly. Seat belt buckles, wiring updates/repairs, and airbag module faults may be the cause.
Tire wear can be problematic, very dependent on driving style. Our technicians recommend regular tire inspection and replacement when necessary.
Engine vacuum leaks can develop from various locations resulting in illumination of the Check Engine Light.
Abnormal noise may be noted when shifting or reverse gear is selected in vehicles with a manual transmission. If this problem is encountered, proper operation of shift cables and clutch should be v...
An engine oil leak may develop for the valve cover gasket. Gasket replacement will be required to correct these leaks.
An engine oil leak may develop for the valve cover gasket. Gasket replacement will be required to correct these leaks.
The constant velocity (CV) boots and CV joints should be inspected at each service. Servicing the torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
The constant velocity (CV) boots and CV joints should be inspected at each service.
The constant velocity (CV) boots and CV joints should be inspected at each service. Servicing the torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
The constant velocity (CV) boots and CV joints should be inspected at each service. Servicing the torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
Over time, the engine can leak oil at various locations. Early-production vehicles require engine disassembly and modification to resolve leaks at the cylinder heads, oil return tubes, valve cove...
Over time, the engine can leak oil at various locations. Early-production vehicles require engine disassembly and modification to resolve leaks at the cylinder heads, oil return tubes, valve covers...
Check Engine Light illumination and performance issues can be caused by oxygen sensor faults.
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