Used Mercedes-Benz ML250

What to know before buying: Mercedes-Benz ML250

From 3 press tests · updated 12/10/2026

What the reviews say

• Compared with its predecessor, the W166 improves passenger comfort, adds rear legroom and provides adjustable second-row backrests.[2]one sourceMercedes-Benz ML W166, third generation
• The W166 On&Off Road package includes a transfer case, a centre differential lock and six driving modes.[2]one sourceMercedes-Benz ML W166, third generation
• The M-Class has a roomy cabin and a good-sized boot; with the right off-road package it can also handle demanding unsealed roads.[3]one source
• The W164's paint, corrosion protection and chrome are described as durable, while its cabin retains its appearance well.[1]one sourceMercedes-Benz ML W164

Typical faults

• The W166's air suspension is identified as its weakest point; the source estimates replacement of all four air springs at about €1,000.[2]one sourceMercedes-Benz ML W166, third generation
• ML and GLE models were recalled because the windscreen wipers could fail.[3]one source
• On the W164, water entering through the right rear lamp seal can damage a SAM unit; water beneath the front passenger seat can disable the front cabin electronics.[1]one sourceMercedes-Benz ML W164
• W164 electronics can cause trouble: if the audio system stops responding to buttons, the steering-column wiring ribbon may need replacement.[1]one sourceMercedes-Benz ML W164

Which engine and version to take

• If outright power is not a priority, the W166's 204 hp 2.2-litre diesel is described as a sensible choice.[2]one sourceMercedes-Benz ML W166, third generation

What to check at the inspection

• A diagnostic inspection is essential before buying a W166.[2]one sourceMercedes-Benz ML W166, third generation
• Prefer a car with a complete service history: the source says such used Mercedes models usually cost more, but are worth the premium.[3]one source
• Look for off-road use: light scratches along the sides, damage around bumper corners and scrapes on the underbody protection plates.[3]one source
• The engine should start easily from cold, idle smoothly immediately and pull strongly without initial hesitation during the road test.[3]one source
• During the road test, check that the automatic shifts almost imperceptibly even under load and that every four-wheel-drive mode operates.[3]one source

Verdict

Sources

1. [1]car-use.lv — nodaļa “Otras rokas” - Mercedes-Benz ML, W164 (2005... ... · press
2. [2]whatcar.lv — Lietota Mercedes-Benz ML pirkšanas padomi - WhatCar.lv · press
3. [3]carsguide.com.au — Mercedes-Benz ML250 Problems & Reliability Issues · press

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