Breaking In Sac Clutch

Breaking in SAC Clutch

Break in SAC clutches moderately to ensure correct operation.

Caution!
Fast sports driving maneuvers destroy new clutches!
Such maneuvers include:
- Driving maneuvers with high speed differentials
- Overlapping gearshifts with high speed differentials (slipping clutch)
- Very high starting speeds (e.g. when driving onto a transporter)

Comply with the following procedure when breaking in the new clutch:
- Break in friction linings with light to medium loads (observe breaking-in program)
- Normal driving with many "moderate" gearshifts
- Starting speeds on the level up to approx. 2000 rpm
- Specific breaking-in program on gentle gradients
- Starting speeds on a medium gradient up to approx. 2500 rpm (e.g. when driving onto a transporter)

This procedure helps to create a carbon layer between lining and metal friction surface which generates the required coefficient of friction.

Breaking-In Program:
(specially for M vehicles) - At approx. 30 km on roads
- Shift through gears often Starting speed max. 2000 rpm
- Upshifts 1>2>3>4>5
- Downshifts at 2000 rpm 5>4>3>2>1
- Upshifts and downshifts at 3500-4000 rpm
- 3 to 5 times starting on gentle Starting speed max. 2500 rpm.
gradient (up to approx. 12%)

NOTE:
Experience shows that approx. 800 to 1000 gearshifts are required for an optimally broken-in lining when a car is driven "normally" (advice customer).