#Mercedes
11 posts in Car Diagnostics blog about "Mercedes" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Mercedes OM651: injectors, timing chain and the delete myth
The four-cylinder diesel in half the Mercedes range for a decade. Two documented issues dominate, and one of them is measurable before it becomes a symptom.
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Mercedes W204 and W205 C-Class: the fault list by generation
Two generations of the same car with different engines, different electronics and different weak points. Knowing which you are looking at matters.
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VW Crafter and Mercedes Vito: two working vans compared
Different manufacturers, near-identical fault lists. On a working diesel van, what breaks is determined by use rather than by badge.
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Mercedes GLA and GLC: OBD diagnostics on the compact SUVs
Two Mercedes SUVs on different platforms with different fault sets. The GLA borrows from the A-Class; the GLC from the C-Class — and that determines what goes wrong.
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Smart Fortwo: OBD diagnostics on a very small car
A rear-engined city car with an automated manual gearbox has a fault list unlike anything else on the road. The gearbox is where most of the money goes.
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Mercedes Sprinter: commercial vehicle faults, where downtime costs money
On a commercial vehicle diagnostics has different economics: one day off the road costs more than the adapter. Typical Sprinter faults, and which of them can be caught before the van stops.
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Mercedes-Benz Engine OBD Diagnostics: C-Class, E-Class, GLC, Sprinter
OBD-II diagnostics for Mercedes-Benz C-Class, E-Class, GLC, Sprinter: M274 turbo petrol codes, OM651 diesel issues, 7G-Tronic problems, AIRMATIC suspension — guide.
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Mercedes C-Class and E-Class OBD-II Diagnostics: OM651, M271, 7G-Tronic, AIRMATIC
DTC codes for Mercedes W204/W212: OM651 2.2 CDI P0087 rail pressure, M271 CGI chain P0014, 7G-Tronic P0741, AIRMATIC air suspension C1141 — OBD-II Live Data without Star Diagnosis.
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Brake pad wear via OBD-II: how BMW, Audi, Mercedes "count" remaining life
What OBD-II shows about brake pads on modern cars: wear sensors, calculated brake pad wear, codes C1000, C1100, and why "2000 mi to replacement" on a BMW is not guesswork.
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Manufacturer coding: how to activate "hidden" features on VAG, BMW and Mercedes via OBD
What long coding on VAG (VCDS) is, byte coding on BMW (ISTA/E-Sys), Xentry SCN on Mercedes. Which features you can legally enable, risks, and how not to "brick" an ECU.
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Common Mercedes-Benz Faults: W204, W205, W211, W212 — DTC Codes
Catalogue of common Mercedes C-Class, E-Class, GLK, GLC faults: OM651 diesel, M271/M276 petrol, 7G-Tronic, AirMatic.