Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Mercedes Benz C300 Base, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Table Of Contents For Function Description Of Gasoline Injection And Ignition System With Direct Injection - GF07.70-P-0998MRS
Engine 264.9 in Model 205, 253
| Gasoline injection and ignition system with direct injection, function | GF07.70-P-0002MRS | ||
| Crankcase ventilation system, function | GF01.20-P-0001MRS | ||
| Ignition, function | GF07.10-P-1023MRS | ||
| Starting, function | GF07.10-P-1001MRS | ||
| Fuel supply, function | GF07.10-P-1003MRS | ||
| Injection regulation, function | GF07.10-P-1004MRS | ||
| Ignition system function | GF07.10-P-1005MRS | ||
| Synchronize fuel injection and firing order function | GF07.10-P-1006MRS | ||
| Start, post-start phase and warm-up enrichment, function | GF07.10-P-1007MRS | ||
| RPM control, function | GF07.10-P-1008MRS | ||
| Alternator interface function | Engine 264.9 in Model 205 except code B01 (48V Technology) |
GF07.10-P-1009MRS | |
| Lambda control, function | GF07.10-P-1010MRS | ||
| Smooth running control, function | GF07.10-P-1011MRS | ||
| Thermal management, function | GF07.10-P-1012MRS | ||
| Torque coordination, function | GF07.10-P-1013MRS | ||
| Overrun mode fuel shutoff, function | GF07.10-P-1014MRS | ||
| Knock control, function | GF07.10-P-1015MRS | ||
| Camshaft adjustment, function | GF07.10-P-1016MRS | ||
| Engine limp-home mode, function | GF07.10-P-1019MRS | ||
| European OBD, function | GF07.10-P-1021MRS | ||
| ECO start/stop function Engine management, function | GF07.10-P-1042MRS | ||
| Charging, function | GF09.00-P-2000MRS | ||
| Exhaust treatment function | GF14.00-P-3000MRS | ||
| Electronic accelerator function | GF30.20-P-3015MRS | ||
| On-board refueling vapor recovery function | Engine 264.9 in Model 205 with code 494 (US version) |
GF47.10-P-3004MRS | |
| Purging function | GF47.30-P-3015MRS | ||
| Purging system with leak test function | Engine 264.9 in Model 205 with code 494 (US version) |
GF47.30-P-3016MRS | |
| Overview of system components for gasoline injection and ignition system with direct injection | GF07.70-P-9998MRS |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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