Is the Mercedes E-Class reliable?
56% of the 32 we inspected scored 60/100 or higher, with an average of 62/100 — it scores about average.
32
Cars inspectedreal pre-purchase inspections62/100
Average conditionall cars we check: 61/10056%
In good shape (60+)all cars we check: 56%Across 32 used Mercedes E-Classs we inspected, this model scores about average — average condition 62/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
88%
Active error codes · Electronic equipment
59%
Fuel trim out of range · Engine
41%
Tires condition & wear · Brakes and tires
38%
Abnormal noise · Engine
16%
Share of inspected Mercedes E-Classs where each item was flagged.
How they score
Excellent 22%
Good 34%
Mediocre 31%
Poor 13%
Hidden history
What the seller might not mention — how often we find it on this model.
91%had a repainted or replaced panelall cars: 75%
0%showed structural repairall cars: 4%
16%had fault codes recently clearedall cars: 24%
More on Mercedes
Other Mercedes models we've inspected — or see the full Mercedes profile.
Straight from recent Mercedes E-Class reports
2015 Mercedes E-Class · 87k mi — flagged: oil leaks, battery condition, fuel trim out of range. Inspected Sep 11.
2014 Mercedes E-Class · 66k mi — flagged: abnormal noise, belts, oil leaks. Inspected Mar 23.
The bottom line
Don't trust the shine. Nine in ten of these have been resprayed, though none show structural repair, so check the paintwork quality rather than assuming original paint. The engine is what actually decides the deal: oil leaks show up on 88 percent, with fuel-trim issues and live error codes also in the mix. Start under the hood—look for leaks, listen, then scan before you talk money. A dry, quiet engine with a clean scan is worth chasing; wet oil plus codes means walk away or discount hard enough to cover the repair.
FAQ
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What are the most common problems on a used Mercedes E-Class?
The items we flag most often are oil leaks (88%), active error codes (59%), fuel trim out of range (41%). Have these checked before buying.
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Should I worry about cleared fault codes?
On 16% of these cars the ECU codes had been erased shortly before sale, which can hide active faults. Ask for a diagnostic scan and start the engine from cold.
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Based on 32 inspections · updated Oct 1, 2026
