Modification of crankcase ventilation with new cylinder head/engine

WARNING: This page is about a different variant/trim than selected.

From engine number 139320 (approximately chassis number 098900) a modified crankcase ventilation has been introduced into production. A hose was added from the oil trap to the cylinder head. Only the later type of cylinder heads and engine are available as replacement parts

Fig 1: Identifying Upper Charge Air Pipe And Lower Charge Air Pipe

Courtesy of VOLVO CARS OF NORTH AMERICA.

Replacing cylinder head/engine

When replacing a cylinder head or engine, the crankcase ventilation must be upgraded to the later type.

The later type of oil trap has to be installed when replacing a cylinder head.
A hose has to be installed from the oil trap to the cylinder head.
A new ignition cable kit with a longer cable must be installed

Parts:	-	-
Oil Trap	9146756-3	1 pcs.*
Hose	9146757-1	1 pcs.
Hose Clamp	976561-1	3 pcs.
Hose Clamp	976584-3	2 pcs.
Hose Clamp	977964-6	2 pcs.
Ignition Cable Kit	9135700-4	1 pcs.

*not necessary for engine replacement.