Mercedes Benz Gla car check
Find out if a Mercedes Benz Gla has outstanding finance, has been written off or stolen, how many owners it’s had, and which known problems apply to the generation you’re looking at.
Finance, stolen, write-off and owner history data provided by Experian. Results in under a minute.
- Typical price
- £20,6321,180 at dealers
- MOT failure rate
- 12.9%124k tests
- Known problems
- 5across X156
- Full report
- £7.49one-off, no subscription
Which Gla are you looking at?
Each Gla generation has its own weak spots. Here are the known problems.
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Excessive brake fluid consumption
Safety and MOT risk X156The GLA shows abnormally high rates of brake fluid falling below minimum levels, with MOT data showing failures at 9.5x the fleet average on some variants. This suggests either external leaks from brake lines or internal consumption through worn brake components. The issue affects cars from new, indicating a design or manufacturing concern rather than normal wear. Low brake fluid triggers ESP and ABS warning lights and can lead to brake system failure.
What to check: Check the brake fluid reservoir located on the left side of the engine bay - the level should be between MIN and MAX marks with the car on level ground. Look under the car for wet spots or staining on the ground where it has been parked - brake fluid is clear to light brown and feels slippery. In...
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Suspension joint dust cover deterioration
Wear item X156The GLA suffers premature deterioration of suspension joint dust covers, with failures at 7.8x the fleet average. These rubber boots protect ball joints and track rod ends from dirt and water ingress. When they split or detach, contamination accelerates joint wear and leads to MOT failures. The issue affects multiple suspension components across all engine variants and appears to worsen over time, suggesting material quality concerns.
What to check: Look under the front of the car at each wheel - identify the ball joints on the suspension arms and track rod ends on the steering rack. Examine the rubber dust covers on these joints for splits, tears, or detachment. Look for grease leakage around the joints - this indicates the protective seal ...
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Premature brake pad wear
Safety and MOT risk X156MOT data shows the GLA reaches brake pad wear indicators at 6.6x the fleet average, particularly on 1.6L petrol variants at low mileage. This suggests either aggressive brake pad compounds, insufficient cooling, or brake system imbalance causing uneven wear. The issue affects cars from very low mileage, indicating design factors rather than normal wear patterns.
What to check: Look through the wheel spokes at the brake pads - the friction material should be visible as a dark block between the brake caliper and disc. Check that pad thickness appears even across both front wheels and both rear wheels. Ask for service history showing when brake pads were last replaced and...
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Engine management light
Engine damage risk X156The 2.1L diesel GLA shows engine management light failures at This typically indicates emissions system faults such as EGR valve carbon build-up, DPF regeneration problems, or lambda sensor failures. The pattern across all mileage bands suggests design vulnerabilities in the emissions control system rather than normal component wear.
What to check: Turn the ignition to position 2 without starting the engine - check that the engine management light illuminates briefly then extinguishes. Ask the seller if the light has been on recently and whether any diagnostic work has been carried out. Request any diagnostic fault codes if available.
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CV joint boot failure
Wear item X156The GLA experiences CV joint boot failures at 2.6x the fleet average, primarily affecting the outer joints on the driveshafts. These rubber boots protect the constant velocity joints from dirt and moisture while containing the joint grease. When they split, the joints become contaminated and wear rapidly, eventually requiring complete driveshaft replacement.
What to check: Look under the car at each front wheel - locate the driveshafts running from the gearbox to the wheels. Examine the rubber boots at each end of the driveshafts for splits, cracks, or grease leakage. Check for grease splatter on the inside of the wheels or around the joint areas. The outer boots (...
We haven’t flagged any common problems for this generation in our data yet. A history check still tells you about finance, write-offs and theft, and the MOT history shows how this particular car has been looked after.
What Glas cost at dealers now
From 1,180 used Glas we track on UK dealer websites.
- Typical asking price
- £20,632
- Typical mileage
- 41,619 miles
- Price change vs last month
- -21.9%
Gla MOT results
of Gla MOT tests end in a fail, from 123,659 tests.
Most common reasons for failing
- Steering lock missing or not functioningSteering
- Anti-roll bar links wornSuspension
- Brake fluid below minimum markBrakes
Check the Gla you’re buying
One report covers outstanding finance, write-offs, theft and previous owners from Experian, plus MOT history, mileage and the known problems for its generation.
Finance, stolen, write-off and owner history data provided by Experian.
What the check includes
- Outstanding finance Experian
- Write-off status Experian
- Stolen vehicle check Experian
- Previous owners and keeper history Experian
- MOT history and advisories DVSA
- Mileage check DVSA
- Known problems for its generation GetCarWise
- How many are left on the road DVLA
Gla questions
Is the Mercedes Benz Gla reliable?
12.9% of Gla models fail their MOT based on 123,659 tests analysed. That’s better than average for the class. There are 5 known problems to watch for, the most serious being excessive brake fluid consumption. A full history check shows whether a specific car has had related write-offs or insurance claims.
What are the main problems with a Mercedes Benz Gla?
The most serious known issues are excessive brake fluid consumption, suspension joint dust cover deterioration, premature brake pad wear. Our car check flags whether a specific Gla has been written off or had insurance claims linked to these faults.
How do I check if a Mercedes Benz Gla has outstanding finance?
Enter the registration on this page. We query Experian’s finance database and return any outstanding agreements within a minute. If finance is still owed, the finance company can legally repossess the car even after you’ve paid the seller. At £7.49 it’s the cheapest way to avoid a car that isn’t legally for sale.
How do I check if a Mercedes Benz Gla has been written off?
Our check queries Experian’s insurance write-off database for Cat A, B, S and N markers. A Cat S or N Gla has been structurally or non-structurally damaged and repaired. This doesn’t mean it’s unsafe, but it affects resale value and some insurers won’t cover it. The check costs £7.49.
Can I check a Mercedes Benz Gla for free?
You can check MOT history free on GOV.UK, which shows past test results and advisories. What it won’t show is outstanding finance, write-offs or theft markers, which are the things that actually cost you money after you’ve bought. Our full check adds all of that for £7.49, using Experian data.
Is a Mercedes Benz Gla HPI check worth it?
HPI is one brand of car check. Our check uses the same Experian data covering finance, stolen, write-off and keeper history, plus MOT analysis and known Gla faults that HPI doesn’t include. At £7.49 it’s typically less than half the price of an HPI check.
What does a Mercedes Benz Gla fail its MOT on?
The most common MOT failure on the Gla is steering lock missing or not functioning. 12.9% of Gla models fail overall, based on 123,659 tests. Checking a car’s full MOT history before buying shows you recurring problems the seller might not mention.
More on the Gla
Other Mercedes Benz car checks
Finance, stolen, write-off and owner history data provided by Experian. MOT data from DVSA. Known problems from GetCarWise analysis. Updated October 2026.