ME-SFI vehicle features - AH07.61-P-0002-02KE
WARNING: This page does not describe the selected car, but rather 202 other vehicles, including the 2020 Mercedes-Benz SLC300, 2020 Mercedes-Benz SL550, 2020 Mercedes-Benz SL450, 2020 Mercedes-Benz GLA250, and 2019 Mercedes-Benz SLC300. However, it is still accessible from the selected car via links, so may be relevant.
Scope of changes for engine 271 REPO
Engine 271 underwent model refinement in 2006. Technical modifications on the model refined engines 271 REPO (repositioning) were introduced from 06/06 in two steps.
The following engines belong to the REPO engines:
- 271.944 in model 171 with 120 kW (from 12/06)
- 271.921 in model 203 with 90 kW (from 12/06)
- 271.946 in model 203 with 105 kW (from 12/06)
- 271.940 in model 203 with 120 kW (from 12/06)
- 271.955 in model 209 with 135 kW
- 271.956 in model 211 with 135 kW
| Technical modification: | in model 171 as of 06/2006 | as of 12/2006 | in model 203 as of 06/2006 | ab 12/2006 | in model 209 as of 06/2006 | as of 12/2006 | in model 211 as of 06/2006 | from 12/2006 |
|---|---|---|---|---|---|---|---|---|
Modified cylinder head:
|
X | X | X | X | ||||
| New cylinder head gasket | X | X | X | X | ||||
| New piston - compression of 8.5 (for 135 kW engine) | X | X | ||||||
| Stronger valve springs (for motor speeds up to 6300 rpm) | X | X | X | X | ||||
| Spark plugs M12X1.5 instead of M14X1.5 | X | X | X | X | ||||
| New ignition coils | X | X | X | X | ||||
| New Injection valves with 6-hole nozzle (previously 4-hole nozzle) | X | X | X | X | ||||
| Improved cooling of intake valve "Quick Heat" | X | X | X | X | ||||
| New camshaft-driven vacuum pump (without connection for vacuum supply for ADAPTIVE BRAKE (ABR)) | X | X | X | X | ||||
| New cylinder crankcase (with a second knock sensor eye) | X | X | X | X | ||||
| Supercharger with a higher gear ratio of i=2.5 (for 135 kW engine) | X | X | ||||||
| Output increase from 120 to 135 kW and torque increase from 240 Nm to 250 Nm | X | X | ||||||
| Engine control unit 16 bit (ME-SFI [ME] control unit) with new data base | X | X | X | X | ||||
| Firewall catalytic converter with manifold and underfloor catalytic converter (for left steer) with high-quality catalytic converter coating | X | X | X | X | ||||
| Firewall catalytic converter with manifold and underfloor catalytic converter (for right steer) with high-quality catalytic converter coating | X | X | X | X | ||||
| Fuel grade (for left steer) lowered from 98 to 95 research octane number (RON) (from premium to normal gasoline) (in combination with the new catalytic converter coating) | X | X | X | X | ||||
| Fuel grade (for right steer) lowered from 98 to 95 research octane number (RON) (from premium to normal gasoline) (in combination with the new catalytic converter coating) | X | X | X | X | ||||
| New exhaust system | X | X | X | X | ||||