2019 Mercedes-Benz GLS 3.0L Diesel · M77 OBE
2019 Mercedes-Benz GLS (3.0L, diesel). First registered 31 Jul 2019. Recorded mileage 40,893 miles. MOT expired on 04 Nov 2026. Taxed until 01 Feb 2027.
- Make & Model
- MERCEDES-BENZ GLS
- Year / Origin
- 2019 · Manchester
- Safety Recall
- Unknown
- MOT Status
- Expired on 04 Nov 2026
- Road Tax
- Taxed (01 Feb 2027)
- Recorded Mileage
- 40,893 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 6)
- Fuel & Engine
- Diesel · 3.0L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
M77 OBE Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 05/11/2025
- 40,893 miles recorded at latest MOT
- 2 historical MOT failures
- No defects recorded at the latest MOT
- Recurring tyres items (5 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
M77 OBE MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2019 Mercedes-Benz Gls (M77 OBE) between October 2023 and November 2025.
The record contains 3 passes and 2 failures.
The most recent test on 05 November 2025 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Tyres (5 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 5 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
Recorded failure items include: “Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))”; “Offside Front Direction indicator not working (4.4.1 (a) (ii))”.
M77 OBE Mileage History
- 30/10/202325,398 mi
- 04/11/202431,530 mi+6,132 mi
- 05/11/202431,530 mi
- 05/11/202540,819 mi+9,289 mi
- 05/11/202540,893 mi+74 mi
Average of roughly 7,679 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
Estimate current market value
Generate an instant valuation benchmark based on live market listings, vehicle mileage, and recent dealer auction figures.
Known faults for Mercedes-Benz Mercedes-Benz GLS (X167)
Our database tracks 3 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Below Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Digital Service History
Access verified franchised dealer maintenance records for M77OBE.
Unlock Manufacturer Digital Service Records
Check franchised dealer maintenance history for M77OBE. Our direct integration verifies routine service events, workshop operations, recorded mileage, and technician logs.
Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
Recommended, provided the recent engine
The primary point of negotiation and investigation should be the engine MIL malfunction recorded in November 2025. Request the diagnostic report and the invoice for the repair to confirm that the underlying cause was fixed rather than simply reset. Given the low annual mileage for a large diesel, check the service history for evidence of regular oil changes to prevent carbon buildup common in under-used diesel engines.
Ensure that all tyres have been replaced since the 2024 MOT, as the record noted cracking and perishing on the front and nearside rear. Verify that the offside front indicator is fully operational, as this was a cause for failure in 2024.
Running costs for this 2987cc diesel will be significant. While the Euro 6 AD status ensures compliance with most UK clean air zones, the vehicle's size and engine capacity place it in a higher tax bracket and insurance group.
Maintenance costs for the GLS are typically premium, reflecting its position in the Mercedes-Benz range. Expect higher-than-average costs for consumables such as tyres and brake pads, which are noted as common failure points across the wider GLS model population.
Carefully inspect the tyre sidewalls for any signs of cracking or perishing, referencing the failures recorded in November 2024. Check the dashboard for any active warning lights, specifically looking for the engine management light that caused the failure in late 2025.
While this specific vehicle has not recorded brake failures, the aggregate data for the GLS shows brake pads and service brake efficiency as top failure reasons. A physical inspection of the brake pad thickness and a test of the braking feel are advised.
This 2019 black Mercedes-Benz GLS diesel has recorded 40,893 miles as of November 2025, which is notably below the model average. Its MOT history shows a pattern of minor failures, including tyre perishing and a recent engine management light (MIL) malfunction. Despite these, the vehicle has passed its most recent tests and remains Euro 6 AD compliant.
The GLS maintains a strong aggregate MOT pass rate of 90.5%, with most failures attributed to routine wear-and-tear items like tyres and brakes.
Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.
Data Sources
DVSA
Official MOT test logs & failure reasons
DVLA
Tax, registration & powertrain specs
Experian
Finance, stolen markers & total loss
AI Analysis
Historical fault & advisory patterns
Similar Vehicles
Similar Vehicles Checked Recently
Plate Neighbors
Batch Registration Neighbors (M77O Series)
Vehicles registered in the same regional DVLA batch as M77OBE.
VAUXHALL
CORSA
AUDI
Q2
VOLKSWAGEN
POLO MATCH TSI S-A
VAUXHALL
INSIGNIA
PEUGEOT
2008
FORD
FOCUS
HYUNDAI
KONA N T-GDI S-A
LAND ROVER
RANGE ROVER SPORT
NISSAN
PRIMASTAR
PORSCHE
CAYENNE
POLESTAR
POLESTAR 4 PLUS EV AWD
MERCEDES-BENZ
C
MERCEDES-BENZ GLS Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2019 model year cars.
- AIRMATIC air spring leaks, compressor burnout and false AIRMATIC warningsSerious
Every X167 GLS rides on air springs, either AIRMATIC or E-Active Body Control. Specialist reliability data identifies cracked rubber bellows as the most common failure - one corner sags after the car has stood, and if it is ignored the compressor runs continuously trying to hold pressure and burns out, turning a single-strut job into a compressor plus strut bill. The same source notes a Mercedes technical bulletin for an 'AIRMATIC fault' warning caused by control-unit software rather than a mechanical leak, so a swap of struts may not clear it. Parkers confirms air suspension is standard across the range, which means no GLS escapes the cost.
- 48V ground connection torque fault and 48V battery failuresSerious
DVSA campaign R/2024/173 covers 218 UK GLS cars because the 48V ground connection under the passenger seat could come loose, with the bolts to be checked and re-torqued. Overseas recall data for the same 167 platform is more blunt: a manufacturing defect left the threaded nut securing the 48V harness under the seat inadequately torqued, and a loose connection can overheat, causing a fire risk plus widespread electrical faults on GLE and GLS cars built 2019-2022. Owners also report sudden '48V battery malfunction' warnings, loss of stop-start and a no-start that a conventional jump lead will not fix.
- DPF and AdBlue faults on the GLS 400d from short-trip useModerate
The GLS 400d runs the OM656 six-cylinder diesel with a full SCR system. Specialist reliability data warns that urban use prevents the particulate filter completing regeneration, producing warning lights, reduced power and eventually limp mode, with a blocked DPF that cannot be cleaned in situ running to a full replacement. Mercedes specialists describe the companion emissions failure pattern: an AdBlue warning, then a countdown stating the engine will not restart, usually caused by a failed dosing pump, tank heater or NOx sensor rather than low fluid level. Heavy SUVs used for school runs are the worst cases.
Recently Checked UK Vehicles
Live vehicle history checks and MOT records recently queried by UK car buyers.