INTRODUCTION
Thank you for using our calculator tool. This article examines the real-world cost of ownership and common problems for the 2008 Mercedes-Benz M-Class (W164) ML 500 4-matic (164.172) with 325990 km on the odometer.
ESTIMATED MARKET PRICE
Approximate cost in the used market is $6500-$11000 depending on condition. New equivalents are not available; certified pre-owned examples range $12000-$16000.
DEPRECIATION — PAST YEAR
The vehicle lost approximately $1800 in value over the past year, equating to a 19% depreciation.
DEPRECIATION FORECAST
Projected loss: $1200 in year 1 (resale ~$7500), $2800 over 3 years (resale ~$5000), and $4200 over 5 years (resale ~$3500).
BREAKDOWN FREQUENCY & REPAIR COSTS
This model experiences moderate breakdown frequency. Average repair bill is $850-$1400.
ENGINE RELIABILITY & REPAIR COSTS
The ML 500 4-matic (164.172) engine rates average reliability at high mileage. Common issues include timing chain stretch ($3200), valve cover leaks ($650), and coolant pipe failures ($1100).
TRANSMISSION & GEARBOX RELIABILITY
The 7-speed automatic and 4MATIC drivetrain are reasonably reliable but prone to conductor plate failure ($1100) and transfer case leaks ($950).
ELECTRICAL SYSTEM & MULTIMEDIA RELIABILITY
Electronics show average reliability. Typical repairs include SAM module faults ($780) and sensor replacements ($350-$550).
SUSPENSION & CHASSIS RELIABILITY
Suspension reliability is below average. Common wear items are air struts ($1450 per axle) and control arms ($680).
BODY & EXTERIOR
Paint quality is good with fair rust protection. Spare parts: bumper $620, fender $480, headlight assembly $390.
SCHEDULED MAINTENANCE COSTS
At 325990 km, routine service averages $520 including oil/filter change, spark plugs ($280), and brake service ($410).
TAXES, REGISTRATION & INSURANCE
Annual tax and registration ~$420; average insurance $1350 per year.
FUEL / ENERGY COSTS
Average consumption 15.2 L/100km. Estimated annual fuel cost $2850 based on 15000 km yearly driving.
TYRES
Factory size 255/50R19. OEM tyres $265 each; quality alternatives $175 each.
FILTERS & CONSUMABLES
Cabin filter $55, oil filter $28, air filter $45.
TOTAL ANNUAL OWNERSHIP COST
Combined yearly costs average $9200 including fuel, maintenance, insurance, tires and repairs.
PROS & CONS
Pros: strong performance, comfortable ride, spacious interior. Cons: high repair costs, fuel consumption, aging electronics at high mileage.
WHAT TO CHECK BEFORE BUYING
Inspect timing chain noise, air suspension leaks, transmission fluid condition, 4MATIC transfer case, and rust on underbody.
VERDICT
Due to high mileage and elevated maintenance costs, this vehicle is best avoided unless extensively inspected and priced accordingly. Not recommended for average buyers seeking reliability.
