Is the 2018 LEXUS LS reliable?

Excellent reliability. Very few MOT failures. 94% of LEXUS LSs from 2018 passed their MOT first time in 2026, based on 154 tests. That's 12 points above the national average of 82%.

How much does a 2018 LEXUS LS cost to run?

Estimated annual running cost is £2,042 (£170/month), including £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2018 LEXUS LS?

The 2018 LEXUS LS has a 94% MOT pass rate based on 154 tests in 2026. This ranks 151 out of 649 cars from 2018.

Which year LEXUS LS is most reliable?

The 2020 LEXUS LS has the highest MOT pass rate at 100%. The least reliable year is 2015 at 81%.

LEXUS LS (2018)

Q: What is the average mileage for a 2018 LEXUS LS?

The average mileage for a 2018 LEXUS LS is 30,327 miles, which is below the expected 59,200 miles for a 8-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 154 real MOT tests.

Annual Cost

£2,042

£170/month

MOT Pass Rate

94%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 35-50

3456cc Hybrid

Great Choice

94% pass rate, £2042/year to run. 12 points above average.

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Hybrid3456cc8 years old154 tests30k miles avg

Annual Running Costs

Fuel (Hybrid, 3456cc)

~30 mpg

£1,592

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,042

Per month£170/mo

Per week£39/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

94% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the LEXUS brand average of 87%.

At 8 years old, 94% of LEXUS LSs from 2018 passed their MOT first time in 2026. That's based on 154 tests across the UK. The average mileage at this age is 30,327 miles.

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How Does It Compare?

Rank among 2018 cars151th of 649(top 23%)

Rank among LEXUS models61th of 301(top 20%)

vs national average+12%(82% avg)

vs 2018 cars average+5%(89% avg)

vs LEXUS average+7%(87% avg)

Mileage Analysis

30,327

Average miles

59,200

Expected for age

The average 2018 LEXUS LS has 30,327 miles on the clock, which is below the expected 59,200 miles for a 8-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 2020 model with a 100% MOT pass rate, while the 2015 model has the lowest at 81%. The 2018 sits between the two at 94%.

LEXUS LS by Year

Year	Pass Rate	Tests	Avg Mileage
2021	92%	48	45,443 mi
2020	100%	64	32,921 mi
2019	99%	146	32,128 mi
2018	94%	154	30,327 mi
2017	83%	35	45,495 mi
2015	81%	53	86,105 mi
2014	96%	48	79,746 mi
2013	88%	138	89,200 mi
2008	82%	155	113,444 mi
2007	86%	416	114,736 mi
2006	85%	132	110,641 mi

Similar Cars to Consider

MERCEDES S-CLASS

2016 · 3498cc Hybrid

£2,097/year

91%

-3%

LEXUS RX

2019 · 3456cc Hybrid

£2,037/year

96%

+2%

BMW X5 XDRIVE45E M SPORT AUTO

2020 · 2998cc Hybrid

£2,037/year

91%

-3%

LEXUS GS

2016 · 3456cc Hybrid

£2,097/year

94%

same

Check a Specific Lexus Ls

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About the 2018 LEXUS LS

The 2018 LEXUS LS is a premium performance with a 3456cc hybrid engine. 154 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 23% of all 2018 cars for reliability.

With an average of 30,327 miles at 8 years old, LEXUS LS owners tend to use this car less than the typical driver.

2018 LEXUS LS Fuel Costs

The 3456cc hybrid engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.

What does it cost to own a 2018 LEXUS LS?

Total estimated annual running cost is £2,042 (£170/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

LEXUS LS Reliability Trend

Newer LEXUS LSs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.

Buying a Used 2018 LEXUS LS

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2020 model has the highest pass rate at 100%.

Common Issues to Watch For

Based on the 2018 LEXUS LS's fuel type, age, and engine size, these are the most likely problem areas to check.

Hybrid Battery Health

Watch out

After 8 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.

Inverter and Power Electronics

Medium risk

The inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.

Regenerative Braking

Medium risk

Brake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

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 2018 LEXUS LS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
LEXUS LS(2018)	94%	£1592	£195	Grp 35-50	£2042
MERCEDES S-CLASS(2016)	91%	£1592	£250	Grp 35-50	£2097+£55
LEXUS RX(2019)	96%	£1592	£190	Grp 35-50	£2037-£5
BMW X5 XDRIVE45E M SPORT AUTO(2020)	91%	£1592	£190	Grp 30-42	£2037-£5
LEXUS GS(2016)	94%	£1592	£250	Grp 35-50	£2097+£55

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.