907SMRT-V4 and 907SMRTG4I Users Manual

The 907SMRT-V4 is a standalone high idle control units for 2019-2024 Sprinter.

The 907SMRTG4I is a standalone high idle control units for 2025-2026 Sprinter.

It is the responsibility of the vehicle operator to ensure their vehicle is parked in a safe and responsible manner.

• When parking the vehicle and using high idle, it is the vehicle operators responsibility to ensure that the vehicle is in a safe location to idle.
• When idling at any speed, be sure to monitor DPF, DEF, fuel, oil, and all other relevant engine parameters to ensure proper engine function and maintenance.

Once installed, the high idle can be activated by using the high beam/turn signal stalk or an external switch. When high idle is activated, the RPM can be adjusted pushing the turn signal stalk up (idle up) or down (idle down).

There are two operation modes available (default mode and switch mode):

To engage high idle, the following conditions must be:

• Vehicle must be running and in Park
• Parking/emergency brake must be ON
• Accelerator and/or brake pedal must not be pressed

To activate high idle (with all conditions met):

Default mode:

1. Parking brake ON
2. Pull high beam/turn signal stalk towards operator to activate high idle
3. Push turn signal stalk UP to increase idle RPM, push turn signal down to decrease idle RPM
4. Pull high beam/turn signal stalk towards operator or turn off high idle

Video demonstrating default mode operation

Switch mode (external switch used to activate high idle):

1. Parking brake ON
2. Turn high idle switch ON to activate high idle
3. Push turn signal stalk UP to increase idle RPM, push turn signal down to decrease idle RPM
4. Turn high idle switch OFF to turn off high idle