2003 Porsche Boxster S Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Porsche Boxster S

2003 Porsche Boxster S Problems

Check Engine Light Due to Various Leaks

Engine vacuum leaks can develop from various locations resulting in illumination of the Check Engine Light.

Misfire due to failed mass air flow sensor or failed purge valve
A failing mass air flow sensor or EVAP purge valve can cause misfire issues.
Persistent Coolant Loss Due to Small Leak at Coolant Reservoir

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.

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2003 Porsche Boxster S Questions

I had to jump my dead battery. Now when the car is running, my a/c doesn't blow. (2 answers)

A/c does blow when the key is on but not started. This is also the same with the windshield wipers.

My radio does everything it should except there is no sound (2 answers)

Radio comes on but there is no sound

No sound from radio (2 answers)

The radio does everything it's supposed to do but there is no sound

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2003 Porsche Boxster S Reviews

I purchased my 986S new in Dec 2002. I have owned 14 new-purchase German vehicles (Audi, VW, & BMW) since 1976 - this Boxster S is heads & shoulders above the rest in terms of performance (to be expected) and reliability. Other than an initial adjustment of the convert. top, installing speed bleeder valves, and a new battery at 5 yrs nothing other than annual maintenance has been required. Ev...
I absolutely love driving this car, but compared to the other reviews left here, I must have gotten a lemon. I purchased my 2003 Boxster S convertible used two years ago with only 37K miles on it, and it seems like I have to sink $2,000 into it every few months. I only had it out of the shop for 10 days and It now needs a new clutch at $2500. I think I've put $7500 into this car in 2 years. ...
I purchased this car at 77k miles over a month ago and I am very happy with it. I can't say too much to the mechanical reliablity since I haven't owned it long but the previous owner has had to have a few transmissions seals replaced and the engine was replaced under warranty it 30k. He has taken good care of it so I don't anticpate any issues. I have already taken the car on a road course t...

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