Knowledge base
Mercedes-Benz blog & knowledge base
Practical guides on Mercedes servicing, diagnostics, common faults and ownership — written by the technicians doing the work.
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servicing
Mercedes 7G-Tronic Gearbox Service: Why "Sealed for Life" is the Most Expensive Lie Mercedes Ever Told
Mercedes says the 7G-Tronic gearbox is "filled for life." We say that is the most expensive lie in the automotive industry. Here is what actually happens when you never change…
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servicing
Mercedes Gearbox Fluid Guide: 236.14 vs 236.15 vs 236.17 — Which ATF Your Gearbox Actually Needs
Put the wrong automatic transmission fluid into a Mercedes gearbox and it will destroy itself within months — not immediately, but slowly and expensively. Here is how to make sure…
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servicing
Mercedes Wheel Alignment: Why It Matters More Than You Think & What a Proper Alignment Actually Costs
A Mercedes has more adjustment points than most cars and will chew through a set of £800 tyres in 5,000 miles if the alignment is wrong. Here is what a…
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faults
Mercedes Vito DPF Issues: London Private Hire Reality & What It Costs to Keep One Running
The Vito is a London private hire workhorse — but short urban journeys, extended idling, and AdBlue demands create a unique set of maintenance challenges. Here is what every Vito…
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faults
Mercedes Sprinter Common Faults (W906 & W907): What Every Owner and Fleet Manager Should Know
The Sprinter is the backbone of countless London businesses — but four well-known faults can put one off the road for days. Here is what they are and how to…
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faults
Mercedes GLE & ML Transfer Case Motor Failure: Symptoms, Diagnosis & Repair
The 4MATIC transfer case on the GLE and ML can develop motor and chain faults that affect all-wheel-drive operation. Here is how to spot the symptoms before the repair bill…
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servicing
Mercedes MOT Failures: The 10 Most Common Reasons Mercedes Fail & How to Prevent Every One
Every year, thousands of Mercedes fail the MOT on predictable, preventable items. Here are the 10 most common reasons, which models are worst affected, and a simple pre-MOT checklist that…
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diagnostics
Mercedes SCN Coding Explained: Why It Matters & What Happens When It Is Not Done
SCN coding is the most misunderstood aspect of modern Mercedes repair. If a module has been replaced on your car and not SCN-coded, it will not work properly — regardless…
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faults
Mercedes 9G-Tronic Judder: Why the 40k Mile Fluid Service Is Non-Negotiable
The 9G-Tronic is a superb gearbox — but skip the 40,000-mile fluid service and you will experience judder that starts as an annoyance and ends as a four-figure repair. Here…
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