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MERCEDES SLK (2000)

Running costs, reliability data, and common problems from 3,545 real MOT tests.

Annual Cost

£2,577

£215/month

MOT Pass Rate

79%

Average

Road Tax

£430

Based on CC/year

Insurance

Grp 25-38

2295cc Petrol

Check Carefully

79% pass rate, £2577/year to run. Close to the national average.

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Petrol2295cc26 years old3,545 tests91k 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

79% 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 26 years old, 79% of MERCEDES SLKs from 2000 passed their MOT first time in 2026. That's based on 3,545 tests across the UK. The average mileage at this age is 90,918 miles.

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How Does It Compare?

Rank among 2000 cars91th of 338(top 27%)
Rank among MERCEDES models1109th of 1,408(top 79%)
vs national average-3%(82% avg)
vs 2000 cars average+6%(73% avg)
vs MERCEDES average-8%(87% avg)

Mileage Analysis

90,918

Average miles

vs

192,400

Expected for age

The average 2000 MERCEDES SLK has 90,918 miles on the clock, which is significantly below the expected 192,400 miles for a 26-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2016 model with a 89% MOT pass rate, while the 1996 model has the lowest at 76%. The 2000 sits between the two at 79%.

MERCEDES SLK by Year

YearPass RateTestsAvg Mileage
201689%2,57242,977 mi
201587%11,05548,710 mi
201487%11,28455,581 mi
201385%11,10662,322 mi
201284%13,36164,940 mi
201185%5,66061,469 mi
201080%4,47266,541 mi
200981%5,34771,532 mi
200880%6,87675,187 mi
200779%7,70077,695 mi
200679%7,88480,213 mi
200578%10,30582,791 mi
200478%6,59884,132 mi
200378%3,32785,438 mi
200281%3,69287,295 mi
200182%4,00590,848 mi
200079%3,54590,918 mi
199979%4,29587,626 mi
199879%3,52389,671 mi
199781%2,19090,802 mi
199676%12698,709 mi

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About the 2000 MERCEDES SLK

The 2000 MERCEDES SLK is a large car with a 2295cc petrol engine. 3,545 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2000, the average MOT pass rate is 73%, and this model beats that benchmark.

With an average of 90,918 miles at 26 years old, MERCEDES SLK owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

2000 MERCEDES SLK 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 2000 MERCEDES SLK?

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 79% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES SLK Reliability Trend

Newer MERCEDES SLKs show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

Buying a Used 2000 MERCEDES SLK

At 26 years old, the MERCEDES SLK 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 2016 model has the highest pass rate at 89%.

Common Issues to Watch For

Based on the 2000 MERCEDES SLK's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 26 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

Medium risk

With an average of 91k 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 2000 MERCEDES SLK stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
MERCEDES SLK(2000)79%£1592£430Grp 25-38£2577
BMW 3 SERIES(1999)78%£1592£250Grp 25-38£2397-£180
RENAULT CLIO(2002)70%£1327£135Grp 18-32£2017-£560
HONDA CR-V(2002)69%£1327£135Grp 18-32£2217-£360
MAZDA MX-5(2002)75%£1327£135Grp 18-32£2017-£560

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.

Related Mercedes Models

Explore other Mercedes cars or similar models in the same category.

Related Guides

In-depth articles relevant to the Mercedes Slk.

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