Carsieve Mercedes-Benz B-Klasse 246 B 180 CDI, 109 PS, 7-speed dual-clutch (2014)
- Power
- 109 PS (80 kW)
- Engine codes
- K9K
- Gearbox
- 7-speed dual-clutch
- Production years
- 2014
- Running cost per month
- €429
- Fuel
- Diesel
- Median price
- €9,100
- Reliability
- 2/5
- DIY
- 2/5
Research for this car
- Gearbox guide Mercedes 7G-DCT dual-clutch (724.0): problems, costs and what to check
Smooth when serviced, but early cars judder and mechatronic or clutch repairs are costly. Buy on oil history and a cold test drive.
Known issues for this car
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| Jerky low-speed shifts and judder | All cars; worst before 2014 | Any, often from cold | No confirmed price | Gearbox guide |
| Clutch pack wear | All cars; more with stop-go and trailer use | Over 200,000 km (Kolesa.ru) | 1,600 to 2,600 EUR (Germany, year not stated; Gebrauchtwagenberater) | Gearbox guide |
| Gearbox control unit (mechatronic) faults | All cars; worst before 2014 | About 200,000 km (Auto.ru) | No confirmed price | Gearbox guide |
| Auxiliary oil pump failure | All cars | Not stated | No confirmed price | Gearbox guide |
Before you buy this car
From the gearbox guide
- Clutch check (needs a scanner). Start cold, creep and pull away in 1st and 2nd, and hold on a hill. Judder, slip, or a vibration at a standstill with the brake on points to worn clutch plates. Read the clutch touch points (Kisspoint) in XENTRY, Mercedes' diagnostic software; K1 odd gears, K2 even. A value past the threshold means a new clutch.
- Mechatronic scan (needs a scanner). Read all transmission codes, not just engine codes. A clean scan does not prove health: one 2014 CLA had no codes but still shook and once dropped into neutral. A stored code, a red warning or a limp-home episode means a control unit job.
- Auxiliary oil pump warning. Ask whether a "Transmission malfunction" message appeared and cleared after gentle driving. A message that stays, or a "stop vehicle" warning, points to the auxiliary pump or control unit. Scan for codes.
- Cold and warm road test. Drive in stop-go traffic and lift off in 1st and 2nd. Jerking that stays when warm, or shifts that hang under load, points to software, adaptation or clutch wear. Ask for the last software update.
- Oil and filter records. Ask for invoices for the fluid and both filters, and for the adaptation reset after the last oil change. No record, black oil or metal fuzz on the drain plug means walk away or budget for a service. Dirty oil damages the control unit.
Running costs
| Operational | €139 |
|---|---|
| Workshop | €137 |
| Fixed costs (tax, insurance) | €153 |
| Total per month | €429 |
| New-car depreciation (not included) | €86 |
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
- 84
- 25th percentile
- €7,500
- Median price
- €9,100
- 75th percentile
- €10,500
- Median mileage
- 153,800 km
- Median first registration
- 2014
- Dealer share
- 66.7%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2016 | 1 | – | – |
| 2014 | 60 | €9,900 | 135,000 km |
| 2013 | 8 | €7,500 | 175,000 km |
| 2012 | 15 | €6,800 | 200,000 km |
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 | 84 | €9,100 | €7,500 – €10,500 | 153,800 km |
| Oct 2026 | 84 | €9,100 | €7,500 – €10,500 | 153,800 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 |
|---|---|---|---|
| B 180 CDI 7G-DCT | 109 PS | 2014 | €429 |