How much does a 2003 RENAULT LL29 DCI 100 cost to run?

Estimated annual running cost is £2,057 (£171/month), including £1037 fuel, £265 road tax, £55 MOT, and £700 predicted repairs.

What is the MOT pass rate for a 2003 RENAULT LL29 DCI 100?

The 2003 RENAULT LL29 DCI 100 has a 65% MOT pass rate based on 97 tests in 2026. This ranks 403 out of 445 cars from 2003.

Which year RENAULT LL29 DCI 100 is most reliable?

The 2005 RENAULT LL29 DCI 100 has the highest MOT pass rate at 72%. The least reliable year is 2003 at 65%.

What is the average mileage for a 2003 RENAULT LL29 DCI 100?

The average mileage for a 2003 RENAULT LL29 DCI 100 is 146,557 miles, which is in line with the expected 170,200 miles for a 23-year-old car, suggesting normal everyday use.

RENAULT LL29 DCI 100 (2003)

Running costs, reliability data, and common problems from 97 real MOT tests.

Annual Cost

£2,057

£171/month

MOT Pass Rate

65%

Below Avg

Road Tax

£265

Based on CC/year

Insurance

Grp 18-32

1870cc Diesel

Proceed With Caution

65% pass rate, £2057/year to run. 17 points below average.

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Diesel1870cc23 years old97 tests147k miles avg

Annual Running Costs

Fuel (Diesel, 1870cc)

~48 mpg

£1,037

Road Tax

Based on 1870cc

£265

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£700

Total per year£2,057

Per month£171/mo

Per week£40/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

65% MOT pass rate(Below Avg)

0%National avg: 82%100%

Below average reliability. Budget extra for maintenance and repairs. That's 17 points below the national average of 82%. It falls below the RENAULT brand average of 80%.

At 23 years old, 65% of RENAULT LL29 DCI 100s from 2003 passed their MOT first time in 2026. That's based on 97 tests across the UK. The average mileage at this age is 146,557 miles.

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How Does It Compare?

Rank among 2003 cars403th of 445(top 91%)

Rank among RENAULT models610th of 636(top 96%)

vs national average-17%(82% avg)

vs 2003 cars average-7%(72% avg)

vs RENAULT average-15%(80% avg)

Mileage Analysis

146,557

Average miles

170,200

Expected for age

The average 2003 RENAULT LL29 DCI 100 has 146,557 miles on the clock, which is in line with the expected 170,200 miles for a 23-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2005 model with a 72% MOT pass rate, while the 2003 model has the lowest at 65%. Consider a different year if reliability is a priority.

RENAULT LL29 DCI 100 by Year

Year	Pass Rate	Tests	Avg Mileage
2006	69%	156	160,263 mi
2005	72%	124	161,467 mi
2004	71%	128	155,973 mi
2003	65%	97	146,557 mi
2002	73%	30	153,253 mi

Similar Cars to Consider

FORD FIESTA

2005 · 1399cc Diesel

£1,490/year

70%

+5%

VOLKSWAGEN GOLF

2005 · 1896cc Diesel

£1,727/year

72%

+7%

VOLKSWAGEN POLO

2005 · 1400cc Diesel

£1,690/year

68%

+3%

VAUXHALL ASTRA

2005 · 1598cc Diesel

£1,795/year

69%

+4%

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About the 2003 RENAULT LL29 DCI 100

The 2003 RENAULT LL29 DCI 100 is a family car with a 1870cc diesel engine. 97 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 91% of 2003 cars for MOT pass rates.

With an average of 146,557 miles at 23 years old, RENAULT LL29 DCI 100 owners drive about as much as the UK average.

2003 RENAULT LL29 DCI 100 Fuel Costs

The 1870cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2003 RENAULT LL29 DCI 100?

Total estimated annual running cost is £2,057 (£171/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 65% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.

RENAULT LL29 DCI 100 Reliability Trend

The RENAULT LL29 DCI 100 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2003 RENAULT LL29 DCI 100

At 23 years old, the RENAULT LL29 DCI 100 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. Note: with only 97 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 2003 RENAULT LL29 DCI 100's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

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 147k 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.

Engine Mounts

Medium risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

Higher Than Average Failure Rate

Watch out

With a 65% MOT pass rate, this model fails more often than most. Budget for unexpected repairs and get a thorough pre-purchase inspection.

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 RENAULT LL29 DCI 100 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
RENAULT LL29 DCI 100(2003)	65%	£1037	£265	Grp 18-32	£2057
FORD FIESTA(2005)	70%	£905	£30	Grp 8-20	£1490-£567
VOLKSWAGEN GOLF(2005)	72%	£1037	£135	Grp 18-32	£1727-£330
VOLKSWAGEN POLO(2005)	68%	£905	£30	Grp 8-20	£1690-£367
VAUXHALL ASTRA(2005)	69%	£905	£135	Grp 12-25	£1795-£262

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.