MOT reliability

Lexus Rx400

Q: Is the Lexus Rx400 reliable?

Across 100 Lexus Rx400 vehicles in our MOT data, 81% pass the MOT (a 19% failure rate), with about 1.8 faults or advisories recorded per test.

Q: What is the average mileage of a Lexus Rx400?

The typical Lexus Rx400 in our data has covered around 146,832 miles.

100 vehicles · 1,545 completed MOT tests analysed

81%

MOT pass rate

Based on 100 Lexus Rx400 vehicles and 1,545 completed MOT tests, the Lexus Rx400 has an overall 81% pass rate, with an average recorded mileage of 146,832 miles.

100

Vehicles

1,545

MOT tests

8,174

Avg miles / year

1.8

Faults per test

Dangerous-fault share

Lexus Rx400 problem areas

Where faults occur most across all Lexus Rx400 MOT tests:

Other47%
Tyres, wheels & suspension36%
Brakes12%
Lamps & electrical6%
Body & structure4%
Visibility3%
Identification & plates2%
Emissions & nuisance1%

Lexus Rx400 pass rate by age

How the Lexus Rx400's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)	Tests	Pass rate
2	2	100%
3	97	82%
4	91	86%
5	92	87%
6	95	85%
7	99	80%
8	89	85%
9	94	81%
10	111	77%
11	104	83%
12	105	78%
13	101	77%
14	83	82%
15	96	82%
16	84	77%
17	85	76%
18	66	74%
19	32	75%
20	14	71%

Fuel types: Petrol (35), Hybrid Electric (Clean) (26), Electric (25), Other (14)

Most common Lexus Rx400 MOT faults

These are the faults and advisories recorded most often across Lexus Rx400 MOT tests:

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (43 times)
Offside Front Tyre worn close to the legal limit (4.1.E.1) (40 times)
Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (39 times)
Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i)) (37 times)
Nearside Front Tyre worn close to the legal limit (4.1.E.1) (33 times)
Front Registration plate deteriorated but not likely to be misread (0.1 (b)) (33 times)
Nearside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2) (29 times)
Offside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2) (29 times)
Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (29 times)
Offside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (27 times)
Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (26 times)
Engine covers fitted obscuring some components in the engine bay (24 times)
Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (24 times)
Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (24 times)
Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (23 times)

Lexus Rx400 pass rate by registration year

Year	Vehicles	Tests	Pass rate	Avg mileage
2009	3	53	77%	127,413
2008	21	362	80%	138,626
2007	35	527	81%	157,240
2006	33	486	80%	139,278
2005	7	114	83%	148,850

Lexus Rx400 reliability FAQ

Across 100 Lexus Rx400 vehicles in our MOT data, 81% pass the MOT (a 19% failure rate), with about 1.8 faults or advisories recorded per test.

The most frequently recorded Lexus Rx400 MOT issues are: Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Offside Front Tyre worn close to the legal limit (4.1.E.1); Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)).

The typical Lexus Rx400 in our data has covered around 146,832 miles.

Compare the Lexus Rx400

See how the Lexus Rx400 stacks up against other Lexus models on MOT reliability:

Rx400 vs Is200 Rx400 vs Ct Rx400 vs Nx Rx400 vs Rx

Check a specific Lexus Rx400

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Lexus models · Learn about common MOT failures · what an MOT checks