The 2003 Porsche Boxster, a mid-engine roadster, emerged from Porsche's desire to offer an entry-level sports car. It features a convertible soft top and two seats. Key trims included the base Boxster and the Boxster S. Production ran from 1996 to 2004 for this generation (986). Pricing ranged from around $43,000 new. Its near-perfect balance and Porsche pedigree made it incredibly popular.
The Good
The 2003 Boxster offers a thrilling driving experience thanks to its responsive handling and potent engines (emotional appeal). It also presents reasonable reliability when properly maintained and acceptable fuel economy for a sports car (practical appeal). The iconic Porsche design and open-top motoring add to the allure.
The Bad
Common weaknesses include potential IMS bearing failure, rear main seal leaks, and issues with the convertible top mechanism. The plastic rear window can become cloudy or cracked. Also, pre-purchase inspections are critical to check for deferred maintenance and potential hidden problems, especially electrical issues.
2003 Porsche Boxster: Quick Overview
- Engine Options:
- 2.7-liter flat-6 (Boxster)
- 3.2-liter flat-6 (Boxster S)
- Horsepower:
- 2.7L: 225 hp
- 3.2L: 258 hp
- Fuel Economy (EPA estimates, varies with driving):
- 2.7L: 18 mpg city / 26 mpg highway (manual)
- 3.2L: 17 mpg city / 25 mpg highway (manual)
- 0-60 Times:
- 2.7L: around 6.1 seconds
- 3.2L: around 5.4 seconds
- Towing Capacity: Not applicable. The Boxster is not designed for towing.
- Trim-Level Features:
- Base Boxster: Leather seats, power windows and locks, air conditioning, a premium sound system, 16-inch alloy wheels, and a manual convertible top.
- Boxster S: More powerful engine, upgraded brakes, sport-tuned suspension, 17-inch alloy wheels, and distinctive exterior styling cues. Options included Bose sound system, navigation (often aftermarket in this year), heated seats, and various interior trim upgrades. Both trims could be equipped with either a 5-speed manual (base) or 6-speed manual (S), or a 5-speed Tiptronic automatic transmission.
2003 Porsche Boxster Specifications
Vehicle Information
| Year | 2003 |
| Make | Porsche |
| Model | 718 Boxster |
| Trim | - |
| Style | - |
| Type | Convertible |
| Category | Compact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | - |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 2.7 L 6-Cyl. |
| Engine Size | 2.7L |
| Engine Cylinders | 6 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
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Analysis
What Problems Does the 2003 Porsche Boxster Have?
The 2003 Porsche Boxster, like other 986-generation models, is known for a few common problems. The most significant is the Intermediate Shaft (IMS) bearing failure, which can lead to catastrophic engine damage. While not all cars experience this, it's a significant concern. Rear Main Seal (RMS) leaks are also prevalent, leading to oil drips. Convertible top issues, including hydraulic failures and broken cables, are not uncommon. The plastic rear window can also become brittle and crack over time.
Electrical gremlins can manifest in various ways, affecting lights, sensors, and other systems. Some owners have reported issues with the mass airflow sensor and oxygen sensors. Recalls for the 2003 Boxster were relatively limited, but it's crucial to check with the NHTSA (National Highway Traffic Safety Administration) for any outstanding safety recalls related to specific VINs.
Long-term reliability hinges heavily on maintenance. Neglecting scheduled services can exacerbate existing problems and lead to more significant and costly repairs. Addressing issues promptly and using quality parts are essential for keeping a 2003 Boxster running reliably.
Electrical gremlins can manifest in various ways, affecting lights, sensors, and other systems. Some owners have reported issues with the mass airflow sensor and oxygen sensors. Recalls for the 2003 Boxster were relatively limited, but it's crucial to check with the NHTSA (National Highway Traffic Safety Administration) for any outstanding safety recalls related to specific VINs.
Long-term reliability hinges heavily on maintenance. Neglecting scheduled services can exacerbate existing problems and lead to more significant and costly repairs. Addressing issues promptly and using quality parts are essential for keeping a 2003 Boxster running reliably.
How long will the 2003 Porsche Boxster last?
Given the age of the 2003 Porsche Boxster, many examples have well over 100,000 miles. With diligent maintenance, including regular oil changes, fluid checks, and timely repairs, these cars can last well beyond 200,000 miles or 20+ years. However, the long-term durability is heavily influenced by maintenance history. Neglect accelerates wear and tear on components like the engine, transmission, and suspension. The IMS bearing remains a long-term concern, and proactive replacement can mitigate the risk of failure. Rubber and plastic components also degrade over time, requiring replacement of hoses, seals, and trim pieces.
What Technology & Safety Features are Included?
The 2003 Porsche Boxster's built-in tech reflects the era. Standard features included a basic sound system with a CD player, power windows and locks, and air conditioning. Optional upgrades included a Bose sound system and, less commonly, a navigation system (often aftermarket units were preferred). Driver-assistance features were minimal compared to modern cars; ABS brakes and traction control were standard. There were no advanced driver-assistance systems (ADAS) like lane departure warning or adaptive cruise control.
Safety features included dual front airbags and side-impact airbags. Anti-lock brakes (ABS) were standard. Electronic Stability Program (ESP), also known as Porsche Stability Management (PSM), was available as an option. Crash test ratings from the NHTSA and IIHS for this specific model year are limited. However, the Boxster generally performed well in safety tests for the period, given its design and construction. The mid-engine layout contributes to good weight distribution and handling, enhancing overall safety.
Keep in mind that technology has advanced significantly since 2003. Buyers should not expect the same level of connectivity or safety features found in newer vehicles.
Safety features included dual front airbags and side-impact airbags. Anti-lock brakes (ABS) were standard. Electronic Stability Program (ESP), also known as Porsche Stability Management (PSM), was available as an option. Crash test ratings from the NHTSA and IIHS for this specific model year are limited. However, the Boxster generally performed well in safety tests for the period, given its design and construction. The mid-engine layout contributes to good weight distribution and handling, enhancing overall safety.
Keep in mind that technology has advanced significantly since 2003. Buyers should not expect the same level of connectivity or safety features found in newer vehicles.
What Colors Options are Available?
Exterior Colors
Arctic Silver Metallic
Black
Carmon Red
Guards Red
Lapis Blue Metallic
Speed Yellow
Seal Grey Metallic
Polar Silver Metallic
Forest Green Metallic
Interior Colors
Black Leather
Boxster Red Leather
Graphite Grey Leather
Savanna Beige Leather
Natural Grey Leather
2003 Porsche Boxster Prices and Market Value
When new, the 2003 Porsche Boxster had a base price around $43,000, while the Boxster S started around $52,000. Today, used market prices typically range from $8,000 to $20,000+, depending on condition, mileage, and options. Depreciation has been significant, but well-maintained examples are holding their value relatively well. Factors affecting resale value include: documented maintenance history, low mileage, desirable options (like a manual transmission), absence of IMS bearing issues (or proof of preventative replacement), and overall cosmetic condition. Cars with clean titles and no accident history command higher prices.
2003 Porsche Boxster Cost of Ownership
The 2003 Porsche Boxster is not particularly economical to own. Insurance costs can be moderate to high, depending on driving record and coverage. Fuel costs are reasonable if driven conservatively, but tempting performance can impact MPG. Maintenance and repair costs can be substantial, especially if issues like the IMS bearing or RMS leak arise. Parts can be expensive, and specialized labor is often required. Budgeting for potential repairs is crucial for long-term ownership. While not the most affordable sports car, enthusiasts find the driving experience worth the expense.
2003 Porsche Boxster Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2003 Porsche Boxster Safety Rating
NHTSA
2003 Porsche Boxster Insurance
Insurance for a 2003 Porsche Boxster is moderately priced, reflecting its status as a Convertible with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2003 Porsche Boxster Compare to Other Convertible?
The 2003 Porsche Boxster competed with vehicles like the BMW Z4, Mercedes-Benz SLK, and Audi TT. In terms of performance, the Boxster generally offered a sharper, more engaging driving experience than the SLK, but the Z4 could be considered a close rival. The Audi TT, especially the 1.8T version, lacked the Boxster's raw performance feel.
In terms of features, the Boxster offered a decent set of standard equipment, but lagged behind the Mercedes-Benz SLK in available luxury options. Reliability can be a concern for the Boxster due to the IMS bearing issue, whereas the BMW Z4 and Mercedes-Benz SLK might present fewer major mechanical problems (though they have their own issues). Price-wise, the Boxster was generally competitive within its class, although used prices can fluctuate based on condition and history.
Alternatives to consider include the BMW Z4 (E85 generation) for a similar roadster experience, or perhaps a Honda S2000 for even sharper handling (though less refined). If reliability is a top priority, exploring later model-year Boxsters (987 generation from 2005 onwards) with updated engines is advisable, as they addressed some of the earlier model's weaknesses.
In terms of features, the Boxster offered a decent set of standard equipment, but lagged behind the Mercedes-Benz SLK in available luxury options. Reliability can be a concern for the Boxster due to the IMS bearing issue, whereas the BMW Z4 and Mercedes-Benz SLK might present fewer major mechanical problems (though they have their own issues). Price-wise, the Boxster was generally competitive within its class, although used prices can fluctuate based on condition and history.
Alternatives to consider include the BMW Z4 (E85 generation) for a similar roadster experience, or perhaps a Honda S2000 for even sharper handling (though less refined). If reliability is a top priority, exploring later model-year Boxsters (987 generation from 2005 onwards) with updated engines is advisable, as they addressed some of the earlier model's weaknesses.
Ranks #2022 Sedan
| 1 | 2023 Toyota Camry | (5.0★) |
| 2 | 2023 Honda Accord | (0.0★) |
| 3 | 2023 Lexus ES | (0.0★) |
| 4 | 2024 Subaru Legacy | (5.0★) |
| 5 | 2022 Mazda MX-30 | (4.0★) |
| 6 | 2024 BMW M3 | (0.0★) |
| 7 | 2023 Ford Mustang | (5.0★) |
| 8 | 2023 Mercedes-Benz AMG GT | (0.0★) |
| 9 | 2023 Audi A3 | (0.0★) |
| 10 | 2023 Chevrolet Camaro | (5.0★) |
| 11 | 2023 Hyundai Elantra Hybrid | (0.0★) |
| 12 | 2023 Nissan Altima | (4.0★) |
| 2022 | 2003 Porsche Boxster | (0.0★) |
Final Verdict: Is the 2003 Porsche Boxster a Good Convertible?
The 2003 Porsche Boxster is ideal for driving enthusiasts seeking an affordable, mid-engine sports car experience. It's worth buying *if* you're prepared for potential maintenance costs and diligently research the car's history. A pre-purchase inspection by a qualified Porsche mechanic is *essential*. Look for well-maintained examples with documented service records. Cars with evidence of IMS bearing replacement are highly desirable. The Boxster S offers more performance, but the base model is still enjoyable. Given its age, buying used is the only option, and condition trumps trim level in importance. It’s a fantastic car, but requires due diligence.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.