Measure oil consumption - AR18.00-P-0025AV

ENGINE 112, 113 

Only for models without Star Diagnosis 

Shown on model 208 with engine 113 

Fig 1: Identifying Diagnostic Socket Cap - Shown On Model 208 With Engine 113

Fig 2: Identifying HHT Connecting Cable

	Inspect
1	Inspect engine for external oil loss	Rectify any leaks.
2	Changing the engine oil and filter	The oil consumption measurement run must only be carried out with fresh engine oil. For this reason, carry out an engine oil change before conducting the oil consumption measurement run. This eliminates any incorrect measurements, as a result of fuel present in the oil. It is not necessary to carry out an engine oil change if the distance which the vehicle has covered since the last oil change is < 1000 km.
		Engine 112 except 112.942	AP18.00-P-0101AE
		Engine 113 except 113.942	AP18.00-P-0101AF
3	Conduct measurement run	Conduct measurement run over a measured distance of 250 km (if measurement carried out by workshop personnel) or over 1000 km (if measurement carried out by customer). If the measurements are conducted by the workshop personnel, take into account operating conditions of the vehicle at the customer's.
4	Plug in connection cable (087) of HHT to the diagnostic socket
5	Read off actual values	When analyzing the actual values, the vehicle must be parked on the same place as when the oil change was carried out otherwise errors may occur when determining the actual values. Read off the consumed oil quantity with the HHT. For this purpose ↓ in the function main groups open menu point "Body"  , ↓ in the function main group Body open "KI (instrument cluster)"  , ↓ in the instrument cluster functions open menu point "Actual values"  , ↓ in the instrument cluster actual values open "Active service system since last oil change"  , ↓ in the active service system menu point "Distance driven since last oil change"  , read off distance and note. Example:  1123 km. ↓ in the active service system menu point "Quantity of oil added during oil change",  read off oil quantity and note. Example: 6.3ltr. ↓  in the active service system menu point "Last and second last detected actual oil quantity with relevant km/miles reading with engine operation"  , read off last detected actual oil quantity and note. Example :  5.6ltr.
6	Calculate oil consumption	If an oil quantity has been replenished in the meantime, add this to the calculation.  Example:  Oil quantity poured in 6.3 liters minus last detected actual oil quantity 5.6 liters and no oil replenishment results in a difference quantity of 0.7 liters. Oil consumption:  Difference quantity in liters x 1000 = ------------------- Distance measured in km = liters/1000 km 0.7 x 1000 = ------------------- = 0.62 liters/1000 km 1123
7	Depending on the oil consumption, top up oil or carry out any necessary repair measure	The oil consumption for engines M 112/113 may be as much as 0.8 liter of oil over 1000 km. Repair measures must only be carried out if the oil consumption is higher than this.