Mercedes-Benz R-Class reliability and MOT data
Time Period & Model
Time period snapshot: Last 5 years
Manufacturer: Mercedes-Benz
Model: R-Class
Model reliability rank
56
MOT-based rank from 14,414 selected-period tests.
Overall MOT pass rate
75.9%
Share of this model's 14,414 selected-period MOT tests that pass.
Efficiency, emissions & tax
Average MPG
-
CO2 emission
-
Euro emissions
-
Tax cost
-
Average vehicle miles
131,727
Solid average mileage for this model.
Life expectancy miles
131,727
Moderate mature-fleet mileage expectation.
Average vehicle age
15.5
Older average age in the represented fleet.
Market share
0.00%
0.00% share within the active represented vehicle pool.
Vehicles represented
1,537
1,537 valid MOT, 0 under 3 years.
Tests analysed
14,414
14,414 MOT tests in the selected period.
Rarity ranking
Based on Make & Model
Very Rare
1,537On the road
Insight summary
Mercedes-Benz R-Class is a very rare model in this snapshot, with 1,537 represented vehicles and 0.00% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 75.9% from 14,414 MOT tests, with a reliability score of 56. The current pool shows an average of 131,727 miles and an average age of 15.5 years, while mature-fleet mileage is estimated at 131,727 miles. Diesel leads the fuel split, followed by petrol, and the most frequent defect themes are driveshaft boots, parking brake and windscreen damage. The practical read is that the Mercedes-Benz R-Class looks a little better than average, but still rewards careful checks on mileage and maintenance.
Fuel type breakdown (by model)
| Fuel | Vehicles |
|---|---|
| DIESEL | 1,405 |
| PETROL | 129 |
| LPG | 3 |
Euro NCAP Safety
Adult
94%
Children
89%
Pedestrian
93%
Safety systems
85%
No NCAP tests found for this model.
Top 25 most common defects (by model)
| Defect | Count |
|---|---|
| Nearside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i)) | 653 |
| Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i)) | 473 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 417 |
| Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i)) | 308 |
| Nearside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i)) | 270 |
| Offside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i)) | 227 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 202 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 167 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 166 |
| Exhaust emissions exceed manufacturer's specified limit (8.2.2.2 (a)) | 157 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 152 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 150 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 126 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 126 |
| Anti-lock braking system warning lamp indicates an ABS fault (1.6 (b)) | 122 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 117 |
| Offside Rear Brake pipe excessively corroded (1.1.11 (c)) | 102 |
| Nearside Rear Brake pipe excessively corroded (1.1.11 (c)) | 99 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 97 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 85 |
| Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i)) | 85 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 83 |
| Offside Front Brake hose excessively deteriorated (1.1.12 (b) (ii)) | 72 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 72 |
| Nearside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i)) | 67 |
01
Nearside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))
14.2% of displayed top 25
653
02
Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))
10.3% of displayed top 25
473
03
Parking brake efficiency below requirements (1.4.2 (a) (i))
9.1% of displayed top 25
417
04
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
6.7% of displayed top 25
308
05
Nearside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))
5.9% of displayed top 25
270
06
Offside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))
4.9% of displayed top 25
227
07
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))
4.4% of displayed top 25
202
08
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))
3.6% of displayed top 25
167
09
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
3.6% of displayed top 25
166
10
Exhaust emissions exceed manufacturer's specified limit (8.2.2.2 (a))
3.4% of displayed top 25
157
11
Offside Front Position lamp not working (4.2.1 (a) (ii))
3.3% of displayed top 25
152
12
Nearside Front Position lamp not working (4.2.1 (a) (ii))
3.3% of displayed top 25
150
13
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))
2.7% of displayed top 25
126
14
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))
2.7% of displayed top 25
126
15
Anti-lock braking system warning lamp indicates an ABS fault (1.6 (b))
2.7% of displayed top 25
122
16
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))
2.5% of displayed top 25
117
17
Offside Rear Brake pipe excessively corroded (1.1.11 (c))
2.2% of displayed top 25
102
18
Nearside Rear Brake pipe excessively corroded (1.1.11 (c))
2.2% of displayed top 25
99
19
Nearside Rear Position lamp not working (4.2.1 (a) (ii))
2.1% of displayed top 25
97
20
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))
1.8% of displayed top 25
85
21
Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))
1.8% of displayed top 25
85
22
Offside Rear Position lamp not working (4.2.1 (a) (ii))
1.8% of displayed top 25
83
23
Offside Front Brake hose excessively deteriorated (1.1.12 (b) (ii))
1.6% of displayed top 25
72
24
Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))
1.6% of displayed top 25
72
25
Nearside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))
1.5% of displayed top 25
67
Last 5 years
Reliability rank breakdown
Mercedes-Benz R-Class reliability, calculated from MOT results for this static model view.