Carsieve Mercedes-Benz SLK-Klasse 172 SLK 250 d, 204 PS, 9-speed automatic, rear-wheel drive (2015–2016)
- Power
- 204 PS (150 kW)
- Engine codes
- 651980
- Gearbox
- 9-speed automatic
- Production years
- 2015–2016
- Running cost per month
- €461
- Fuel
- Diesel
- Median price
- €16,999
- Reliability
- 2/5
- DIY
- 1/5
Research for this car
- Engine guide Mercedes OM651 2.1 diesel (C 220 CDI, E 250 CDI, Sprinter): problems, costs and what to check
Durable when maintained, but check the cold start chain rattle, early injectors and the 2014 tensioner seal before you buy.
Known issues for this car
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| Timing chain stretch and cold start rattle | All OM651 | From about 150,000 km | Chain job not stated. Engine damage: mid to high four-digit EUR (Germany, year not stated) | Engine guide |
| Coolant leak at the cylinder head connection | Some 200, 220 and 250 CDI | Not stated | Not stated | Engine guide |
Before you buy this car
From the engine guide
- Timing chain (scanner needed). Start the engine cold and listen for a metallic rattle for 1-3 seconds. Ask a Mercedes dealer or a diesel specialist to read the cam phase offset (the timing gap between camshaft and crankshaft) with XENTRY, the Mercedes diagnostic tool. Check for codes P0016 and P0017. A plain OBD2 scanner may miss the offset. Bad: a rattle, a stored P0016 or P0017, or a large offset. A jumped chain can destroy the engine.
- Coolant (no scanner). Check the coolant level when the engine is cold, and check it again after a few weeks. Ask a dealer whether service action 1204P59A93 was done on the cylinder head coolant connection. Bad: a falling level or no record of the work.
- Emissions software update (VIN check). Ask a Mercedes dealer to check the VIN for the emissions software update. Bad: no record of the update.
- Oil and service history (no scanner). Ask for oil change records. Long gaps between oil changes, short trips and poor oil all speed up chain wear. Bad: long gaps or no records.
Running costs
| Operational | €147 |
|---|---|
| Workshop | €169 |
| Fixed costs (tax, insurance) | €145 |
| Total per month | €461 |
| New-car depreciation (not included) | €93 |
ADAC figures for 15,000 km a year over 60 months
Market
Listings on mobile.de in this generation with this fuel, gearbox and power.
- Listings
- 59
- 25th percentile
- €15,000
- Median price
- €16,999
- 75th percentile
- €19,200
- Median mileage
- 134,000 km
- Median first registration
- 2013
- Dealer share
- 40.7%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2016 | 1 | – | – |
| 2015 | 10 | €16,900 | 134,000 km |
| 2014 | 12 | €16,999 | 116,076 km |
| 2013 | 17 | €18,500 | 109,000 km |
| 2012 | 17 | €14,900 | 176,000 km |
| 2011 | 2 | – | – |
Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.
Price history
| Month | Listings | Median price | Middle half | Median mileage |
|---|---|---|---|---|
| Nov 2026 | 59 | €16,999 | €15,000 – €19,200 | 134,000 km |
| Oct 2026 | 59 | €16,999 | €15,000 – €19,200 | 134,000 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 1 ADAC versions
| Version | Power | Production years | Running cost per month |
|---|---|---|---|
| SLK 250 d 9G-TRONIC | 204 PS | 2015–2016 | €461 |