The picture
S 350 L Grand Ed Executive D A: a strong MOT record by UK norms
Across 491 MOT tests, the S 350 L Grand Ed Executive D A returns 90.8% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a seriously damaged tyre. Tyre tread under the limit and windscreen damage round out the top three. Average tested mileage sits at 39,791, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Top ten reasons for rejection.
- 01
A tyre seriously damaged
12 occurrences · 2.4% of tests
- 02
Tyre tread depth not in accordance with the requirements
11 occurrences · 2.2% of tests
- 03
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
10 occurrences · 2.0% of tests
- 04
Number plate does not conform to the specified requirements
8 occurrences · 1.6% of tests
- 05
A tyre seriously damaged
6 occurrences · 1.2% of tests
- 06
a brake lining or pad worn below 1.5mm
3 occurrences · 0.6% of tests
- 07
Wiper blade defective
3 occurrences · 0.6% of tests
- 08
Wiper blade missing or obviously not clearing the windscreen
3 occurrences · 0.6% of tests
- 09
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
3 occurrences · 0.6% of tests
- 10
A tyre cords visible or damaged
3 occurrences · 0.6% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 2 failures
£75–£130
If every one of this S 350 L Grand ED Executive D A's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
Try the calculator
Build your own retest budget.
Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
MOT-spec replacement number plate
Faded or non-standard plates fail outright. Replacements take ten minutes online with V5C details.
Search Amazon UK
Buying or keeping a S 350 L Grand ED Executive D A?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a S 350 L Grand ED Executive D A and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.