2003 Porsche Boxster Porsche Boxster 2003

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2003 Porsche Boxster repairs by problem area

Engine (40%)

Transmission and Drivetrain (12%)

Brakes and Traction Control (2%)

Suspension and Steering (15%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (4%)

Other (7%)

Chart based on 165 repairs.
See TSBs and recalls for the 2003 Porsche Boxster.

2003 Porsche Boxster engine repair cost distribution

$2500+ (10%)

$1000 - $2499 (18%)

$500 - $999 (17%)

$100 - $499 (30%)

< $100 (25%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 60 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Porsche Boxster

Engine not specified

82000 mi Intermediate shaft went through the engine. New engine shipped from Germany. 
83000 mi Ignition switch. 

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2003 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 6-speed manual RWD

97000 mi

US $800
Replaced leaking water pump, replaced thermostat at same time 
118300 mi

US $300
AOS Failed 
141000 mi

US $1000
Could smell antifreeze and front window was fogging badly. Received a low coolant warning on start up that went away when car warmed up. Heater core was replaced. 
148000 mi

US $500
motor mount - replaced with 987 version 
149000 mi

US $9400
Cracked head: loss of coolant, no intermix of coolant and oil (coolant was being burned in cylinder). Installed used head. 
160000 mi

US $1000
Replaced water pump at 65,000 miles 
163000 mi

US $600
Coolant fitting failed. Oil cooler oring leaking 
69200 mi

US $1000
Oil separator valve. 
31000 mi Replaced faulty radiator cap 
44300 mi

US $527
Replace water Pump, top off coolant, bleed cooling system Replaced failed front engine mount. The problem is common, so "while I was in there", I just did this repair too. 
48000 mi

US $165
Replaced failed transmission mounts (2) 
141200 mi

US $10
Engine light came on, car would not run, towed home. Air intake hose was detached from from air filter. Removed hose and Mass Airflow Sensor, and throttle body, cleaned each of them reinstalled with new air filter, car ran like new. 
147479 mi

US $380
Water hose to oil cooler failed causing overheating. Replaced hose and system coolant, also replaced all cooling hoses in the car to avoid additional problems. 
28500 mi

US $1600
RMS leak fixed 
89000 mi

US $1200
The 8 year old water pump failed. Replaced the thermostat, drive belt  and also found the plastic engine oil fill line was cracked so replaced. 
65000 mi

US $100
engine mount  
60140 mi

C $250
Replaced a radiator that had a pinhole leak. 
74000 mi

US $3500
Vibration in car at 3200 RPM, replaced engine mount 
41000 mi

US $2400
Rear main seal (RMS) leaking again. Replacing the RMS requires removing the engine. This cost $1,200 in labor and $20 in parts.  
50000 mi Clutch micro switch failed intermitently 
56000 mi

US $1100
belt tensioner paid by cpo 
59000 mi

US $1100
Check Engine Light 
56000 mi

US $10000
Cracked head due to failed water pump. Trying to source new head. 
35000 mi engine seized. intermediate shaft broken. pistons and valves broken thermostat would not open. engine overheated to 213c. 
99300 mi Replaced air-oil separator 
106000 mi

US $4550
Replaced rear main seal (slight leak between transmission and engine, $4000. Replaced water pump, $400. 
16000 mi

US $68
Condensation on coolant tank. Replaced cap and bleeder assembly myself. 
18500 mi

US $1040
Replaced Rear main seal---warranty 
25000 mi Water Pump Replaced 
32700 mi

US $347
Rear main seal replaced. 

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2003 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 5-speed shiftable automatic RWD

54000 mi

US $289
Check engine light on, evidently due to faulty seal on gas cap. 
24166 mi

C $471
serp. pull serp. belt washer, bolt 

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2003 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed shiftable automatic RWD

54200 mi

US $2200
Water pump, constant burning smell in exhaust, panel lights constantly come on -- check engine, airbags, emissions -- some go off after a few months. Faulty panel?Need emissions check/engine lite on.Completely taken apart & put back.Problems 
58000 mi

US $2900
Check engine light for PO491 and PO492 - emissions = $900. Assumed oil leak. Took car apart. Found nothing. $2,000. Water pump = $900. The car is now for sale. Repairs are too expensive. Put 7K on it since I bought it with no dash lights on. 
32000 mi

US $397
Check engine light came on. Dealer diagnosed vacuum reservoir and damaged the oil drain plug so an unnecessary oil change was done. I distrusted the dealer and thought it was a commission scam. Only reset warning light, no problem now. Bad dealer! 
32000 mi

US $400
Vacuum accumulator had to be replaced because it failed and triggered the CEL. 
126000 mi

US $550
Replaced the motor mount 
62000 mi Chech engine light. Code PO491 PO492. Vac lines off. Replaced air pump relay 
29000 mi

US $600
Owner noticed a noisy rattle early in January. Mechanic diagnosed it as a water pump problem and replaced it. 

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2003 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed manual RWD

30000 mi

US $40
ignition switch replacement; bought switch on-line and replaced it myself 
94000 mi

US $300
Motor mount was hanging on by a thread. Could feel the motor shift in corners. Motor mount replaced with polyurethane mount for longevity. Mild increase in NVH. One transmission mount was leaking. Replaced both to be on the safe side. 
96000 mi

US $500
Chain guide on driver's side head lost a chunk which clogged the oil return port. Disassembly of cam shaft cover required to repair and replace. Oil pan removed to find plastic particulate. All chain guides replaced, chain tensioners replaced. 
50000 mi

US $300
Took car in for oil change, replaced serpentine belt and water pump,  and R&R oil pan for small leak. 
16693 mi

US $664
Cracked coolant reservoir replaced. Serpentine belt replaced. 
69700 mi

US $400
Car is overheating. Water Pump failed and was replaced, overheating problem persisted. Still being diagnosed as to the original cause Air bubble in coolant system. System flushed. 
83000 mi

US $150
emission (fuel vapor) control valve for fuel tank failed. 
91000 mi

US $600
oil separator failed 
21756 mi Sealing ring F cranks again 
23645 mi Defective connector fuel pump 
53196 mi Bleeder O-Ring 
53320 mi Cooling tank cap replaced 
56803 mi Front motor mount. Front motor mount 
104000 mi

US $200
Amos was replaced 
27000 mi

US $345
Ignition switch assembly replaced, car would start and all accessories functioned normally, however the key could not be removed from the ignition. 
119500 mi

US $300
Bad ignition coils. 
123000 mi

US $600
fuel pump was replaced 
59200 mi

US $119
Replaced Oil Separator 

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2003 Porsche Boxster Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2003 Porsche Boxster problems occur, check out our car reliability stats.