Starting, Basic Function - GF07.10-P-1032A

Engine all (4xWD) 

Engine all (CAR) 

Overview 

This document contains information on:

• General 
• Function requirements 
• Function 

General 

To start the combustion engine, the powertrain control unit actuates the starter. During the starting procedure, the combustion engine control unit coordinates the injection sequence and firing order.

The start quantity control in the combustion engine control unit calculates the fuel quantity required to start the combustion engine.

Function requirements 

• Engine management ON (circuit 87M).
• Engine not in operation.
• Drive authorization system 4 (DAS 4) start enable.
• Drive range P or N engaged (automatic or dual-clutch transmission).

Function 

Due to the start position of the ignition key, the electronic ignition lock control unit transmits its status to the body/drivetrain signal acquisition and actuation module. If the combustion engine control unit detects engine running and the end of the starting procedure, the driver can regulate the engine speed via the accelerator pedal sensor.

	Function schematics
	Function schematic for starting	Engine 608 in model 118, 177, 247	PE07.10-P-2507-97A
		Engine 282 in model 118, 177, 247	PE07.10-P-2507-97B
		Engine 654 in model 118, 167, 177, 247 Engine 654 in model 213, 238, 257 as of model year 2021 Engine 656 in model 167, 223	PE07.10-P-2507-97C
		Engine 256 in model 167 Engine 256 in model 213, 238 as of model year 2021 Engine 264 in model 213, 238, 257 as of model year 2021	PE07.10-P-2507-97D
		Engine 176, 177 in model 167 Engine 177 in model 290 as of model year 2021	PE07.10-P-2507-97E
		Engine 139 in model 118, 177, 247	PE07.10-P-2507-97F
		Engine 254 in model 206, 254 Engine 256 in model 223	PE07.10-P-2507-97G
		Engine 176 in model 223	PE07.10-P-2507-97H
		Engine 279 in model 223	PE07.10-P-2507-97I
		Engine 139 in model 206, 232	PE07.10-P-2507-97J
		Engine 654 in model 206, 254 Engine 656 in model 223	PE07.10-P-2507-97K
		Engine 177 in model 223, 232	PE07.10-P-2507-97L
		Engine 274 in model 213 as of model year 2021	PE07.10-P-2507-97M
		Engine 656 in model 464	PE07.10-P-2507-97N
	Additional basic functions
	End of start, basic function		GF07.10-P-1033A
	Combustion engine control unit, basic function		GF07.08-P-9890A
	Powertrain control unit, basic function		GF54.21-P-9894A
	Electronic ignition lock control unit, basic function		GF80.57-P-9890A
	Accelerator pedal sensor, basic function		GF30.20-P-2000A