Mercedes-Benz C · 2004+
Mercedes-Benz C DPF Fault Solution
When the DPF (diesel particulate filter) clogs on Mercedes-Benz C (2004+) diesel engines, the car regenerates frequently, power is limited and a warning lamp comes on. Differential pressure and fault memory are checked first, the ECU is identified and a matching software solution is applied after an original backup.
Suitable engines for the Mercedes-Benz C
Year / chassis: W205 - 2018+
| Engine | Power | DPF fault solution |
|---|---|---|
| Mercedes-Benz C 180d 122hp | 122 → 160 bhp | ✓ |
| Mercedes-Benz C 200d 150hp | 150 → 200 bhp | ✓ |
| Mercedes-Benz C 200d 160hp | 160 → 180 bhp | ✓ |
| Mercedes-Benz C 220d 194hp | 194 → 220 bhp | ✓ |
| Mercedes-Benz C 300d 245hp | 245 → 270 bhp | ✓ |
Year / chassis: W205 - 2014 - 2018
| Engine | Power | DPF fault solution |
|---|---|---|
| Mercedes-Benz C 180 CDI (1600cc) 116hp | 116 → 160 bhp | ✓ |
| Mercedes-Benz C 180 CDI (2100cc) 120hp | 120 → 200 bhp | ✓ |
| Mercedes-Benz C 200 CDI (1600cc) 136hp | 136 → 165 bhp | ✓ |
| Mercedes-Benz C 200 CDI (2100cc) 136hp | 136 → 210 bhp | ✓ |
| Mercedes-Benz C 200d 160hp | 160 → 180 bhp | ✓ |
| Mercedes-Benz C 220 CDI 163hp | 163 → 220 bhp | ✓ |
| Mercedes-Benz C 220 CDI 170hp | 170 → 220 bhp | ✓ |
| Mercedes-Benz C 250 CDI 204hp | 204 → 240 bhp | ✓ |
Year / chassis: W204 - 2010 - 2014
| Engine | Power | DPF fault solution |
|---|---|---|
| Mercedes-Benz C 180 CDI 120hp | 120 → 200 bhp | ✓ |
| Mercedes-Benz C 200 CDI 136hp | 136 → 200 bhp | ✓ |
| Mercedes-Benz C 220 CDI 163hp | 163 → 205 bhp | ✓ |
| Mercedes-Benz C 220 CDI 170hp | 170 → 205 bhp | ✓ |
| Mercedes-Benz C 250 CDI 204hp | 204 → 240 bhp | ✓ |
| Mercedes-Benz C 300 CDI 231hp | 231 → 280 bhp | ✓ |
| Mercedes-Benz C 350 CDI 211hp | 211 → 280 bhp | ✓ |
| Mercedes-Benz C 350 CDI 231hp | 231 → 290 bhp | ✓ |
| Mercedes-Benz C 350 CDI 265hp | 265 → 295 bhp | ✓ |
Year / chassis: W204 - 2007 - 2010
| Engine | Power | DPF fault solution |
|---|---|---|
| Mercedes-Benz C 180 CDI 120hp | 120 → 200 bhp | ✓ |
| Mercedes-Benz C 200 CDI 136hp | 136 → 185 bhp | ✓ |
| Mercedes-Benz C 220 CDI 163hp | 163 → 190 bhp | ✓ |
| Mercedes-Benz C 220 CDI 170hp | 170 → 190 bhp | ✓ |
| Mercedes-Benz C 250 CDI 204hp | 204 → 250 bhp | ✓ |
| Mercedes-Benz C 320 CDI 211hp | 211 → 260 bhp | ✓ |
| Mercedes-Benz C 320 CDI 224hp | 224 → 260 bhp | ✓ |
| Mercedes-Benz C 350 CDI 211hp | 211 → 280 bhp | ✓ |
| Mercedes-Benz C 350 CDI 224hp | 224 → 260 bhp | ✓ |
| Mercedes-Benz C 350 CDI 231hp | 231 → 260 bhp | ✓ |
Year / chassis: W203 - 2004 - 2007
| Engine | Power | DPF fault solution |
|---|---|---|
| Mercedes-Benz C 200 CDI 115hp | 115 → 150 bhp | ✓ |
| Mercedes-Benz C 200 CDI 122hp | 122 → 175 bhp | ✓ |
| Mercedes-Benz C 220 CDI 136hp | 136 → 175 bhp | ✓ |
| Mercedes-Benz C 220 CDI 150hp | 150 → 175 bhp | ✓ |
| Mercedes-Benz C 270 CDI 170hp | 170 → 200 bhp | ✓ |
| Mercedes-Benz C 3.0 CDI AMG 231hp | 231 → 260 bhp | ✓ |
| Mercedes-Benz C 320 CDI 211hp | 211 → 260 bhp | ✓ |
| Mercedes-Benz C 320 CDI 224hp | 224 → 260 bhp | ✓ |
When is it needed?
- DPF full / regeneration warning
- Frequent regeneration and rising fuel use
- Engine warning light and reduced power
- Oil dilution and a costly DPF replacement
Typical duration: 1–2 hours
Frequently asked questions
Can a clogged DPF on the Mercedes-Benz C be solved with software?
The filter and sensors are checked first; any mechanical fault is reported. Where suitable for the Mercedes-Benz C, the DPF software solution is applied to the ECU with the original software backed up and verified by a road test.
Will the car pass inspection after a DPF delete?
Work on emission hardware can affect inspection and road compliance. This work is offered only for uses permitted by law, such as off-road, motorsport, export or fault diagnosis. Inspection and road compliance remain the owner's responsibility.
Does the filter have to be physically removed?
We handle the software side; physical work on the filter is done in the workshop depending on the car and your choice. If only software is changed and the filter stays in place, it will keep loading up.
Should I try cleaning first?
In most cases yes. If the filter is not yet blocked, a forced regeneration or chemical clean is the better step; we measure the condition and tell you the cheapest route.
Will fuel consumption drop?
On a car that regenerates frequently it usually does, because the extra fuel burned during regeneration cycles disappears.
Other solutions for the Mercedes-Benz C
Mercedes-Benz C AdBlue fault solution
Mercedes-Benz C EGR fault solution
Mercedes-Benz C Pop & Bang tuning
More about DPF Delete
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⚠ Software work on emission systems is offered only for uses permitted by applicable law (motorsport, off-road use, export, fault diagnosis, etc.). Road use and inspection compliance of the vehicle remain the owner's responsibility.