How much does a 2003 MERCEDES CLK cost to run?

Estimated annual running cost is £2,577 (£215/month), including £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2003 MERCEDES CLK?

The 2003 MERCEDES CLK has a 78% MOT pass rate based on 6,287 tests in 2026. This ranks 121 out of 445 cars from 2003.

Which year MERCEDES CLK is most reliable?

The 2000 MERCEDES CLK has the highest MOT pass rate at 81%. The least reliable year is 1997 at 75%.

MERCEDES CLK (2003)

Q: Is the 2003 MERCEDES CLK reliable?

Average reliability. Expect some repairs as it ages. 78% of MERCEDES CLKs from 2003 passed their MOT first time in 2026, based on 6,287 tests. That's 4 points below the national average of 82%.

Q: What is the average mileage for a 2003 MERCEDES CLK?

The average mileage for a 2003 MERCEDES CLK is 105,487 miles, which is below the expected 170,200 miles for a 23-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 6,287 real MOT tests.

Annual Cost

£2,577

£215/month

MOT Pass Rate

78%

Average

Road Tax

£430

Based on CC/year

Insurance

Grp 25-38

2295cc Petrol

Check Carefully

78% pass rate, £2577/year to run. Close to the national average.

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Petrol2295cc23 years old6,287 tests105k miles avg

Annual Running Costs

Fuel (Petrol, 2295cc)

~30 mpg

£1,592

Road Tax

Based on 2295cc

£430

MOT Test

£55

Predicted Repairs

£500

Total per year£2,577

Per month£215/mo

Per week£50/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

78% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the national average of 82%. It falls below the MERCEDES brand average of 87%.

At 23 years old, 78% of MERCEDES CLKs from 2003 passed their MOT first time in 2026. That's based on 6,287 tests across the UK. The average mileage at this age is 105,487 miles.

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How Does It Compare?

Rank among 2003 cars121th of 445(top 27%)

Rank among MERCEDES models1152th of 1,408(top 82%)

vs national average-4%(82% avg)

vs 2003 cars average+6%(72% avg)

vs MERCEDES average-9%(87% avg)

Mileage Analysis

105,487

Average miles

170,200

Expected for age

The average 2003 MERCEDES CLK has 105,487 miles on the clock, which is below the expected 170,200 miles for a 23-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2000 model with a 81% MOT pass rate, while the 1997 model has the lowest at 75%. The 2003 sits between the two at 78%.

MERCEDES CLK by Year

Year	Pass Rate	Tests	Avg Mileage
2012	90%	30	61,131 mi
2011	75%	40	64,021 mi
2010	77%	152	92,126 mi
2009	76%	6,353	97,542 mi
2008	75%	5,758	104,878 mi
2007	76%	8,003	106,765 mi
2006	76%	7,045	106,273 mi
2005	76%	8,463	107,835 mi
2004	76%	8,352	105,633 mi
2003	78%	6,287	105,487 mi
2002	78%	3,392	106,379 mi
2001	79%	2,542	103,971 mi
2000	81%	2,099	102,251 mi
1999	78%	2,485	103,421 mi
1998	77%	800	102,449 mi
1997	75%	138	86,436 mi

Similar Cars to Consider

RENAULT CLIO

2005 · 1998cc Petrol

£2,217/year

67%

-11%

MERCEDES C

2005 · 1796cc Petrol

£2,017/year

73%

-5%

HONDA CR-V

2005 · 1998cc Petrol

£2,017/year

70%

-8%

LAND ROVER FREELANDER

2005 · 1796cc Petrol

£2,217/year

69%

-9%

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About the 2003 MERCEDES CLK

The 2003 MERCEDES CLK is a large car with a 2295cc petrol engine. 6,287 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2003, the average MOT pass rate is 72%, and this model beats that benchmark.

With an average of 105,487 miles at 23 years old, MERCEDES CLK owners tend to use this car less than the typical driver.

2003 MERCEDES CLK Fuel Costs

The 2295cc petrol engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2003 MERCEDES CLK?

Total estimated annual running cost is £2,577 (£215/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES CLK Reliability Trend

The MERCEDES CLK has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.

Buying a Used 2003 MERCEDES CLK

At 23 years old, the MERCEDES CLK is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2000 model has the highest pass rate at 81%. With 6,287 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2003 MERCEDES CLK's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 23 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Watch out

With an average of 105k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2003 MERCEDES CLK stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES CLK(2003)	78%	£1592	£430	Grp 25-38	£2577
RENAULT CLIO(2005)	67%	£1327	£135	Grp 18-32	£2217-£360
MERCEDES C(2005)	73%	£1327	£135	Grp 18-32	£2017-£560
HONDA CR-V(2005)	70%	£1327	£135	Grp 18-32	£2017-£560
LAND ROVER FREELANDER(2005)	69%	£1327	£135	Grp 18-32	£2217-£360

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.