Installing Oil Guide Housing

Information 

If cold or excessively low-tempered components are sealed to each other by applying sealant, leaks can occur because of condensed water forming or components distorting. Components must have a uniform temperature of at least 17°C.

Information 

The tightening specifications for the basic engine are stored centrally.

> 1X00IN TECHNICAL VALUES

/

> 2X00IN TECHNICAL VALUES

or

> 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES AND ASSEMBLY OVERVIEWS .

Tightening torques and assembly instructions for other assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.

1. Clean sealing surfaces on the oil guide housing and crankcase. The sealing surfaces must be dry and free of grease.
2. Apply liquid sealant to the oil guide housing. Apply Doboseal 224N sealant using the hand-held cartridge. The contour of the bead of sealant must be as shown in the figure shown below. The sealing bead should be approx. 1.0 mm wide and high. Ensure that the bead of sealant is continuous and that there are no gaps. > Applying sealant to oil guide housing 

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   Applying sealant to oil guide housing

   1	Seal application (geometry, 1-mm bead of sealant)
   2	Doboseal 224N sealing compound
   A	Direction of travel

3. Insert a new sealing ring into the ring groove on the lower part of the crankcase and bond it with a very small amount of grease.

   Information 

   When installing the oil guide housing, make sure that it is perfectly aligned and that there is no dirt or dust between the components. Fit the oil guide housing straight. The maximum offset must be less than 0.1 mm and it must not project over the crankcase. Otherwise, leaks can occur while driving.

4. Place the oil guide housing on the crankcase and push evenly against the transmission bell housing.
5. Screw in a fastening screw on each corner of the oil guide housing and tighten screws by hand.

   Information 

   • If the transmission or engine is removed, the oil guide housing must be aligned using a dial gauge. 
6. Then screw in all screws by hand. While doing this, push the oil guide housing towards the transmission. Also fit the two transmission screws and tighten hand-tight.
7. Starting at the transmission flange and proceeding forwards, tighten the screws evenly and in diagonally opposite sequence. Don't forget the five screws from the top to the timing-case cover. (Four screws can be seen in the illustration, the fifth screw is behind the oil-pressure sender.) > Screws between timing-case cover and oil guide housing Observe the different tightening torques. 

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   Screws between timing-case cover and oil guide housing

8. Install oil-pressure sender.
   1. 8.1 Replace sealing rings for adapter and oil-pressure sender.
   2. 8.2 Slide oil-pressure sender -3-  into the adapter -1-  .
   3. 8.3 Fit the fastening screws -4-  .
   4. 8.4 Plug in connector for oil-pressure sender.

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   Oil pressure sensor and oil pressure measuring point

   Fig 1: Oil Guide Housing Components Location

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   Oil guide housing with accessories

   1	Screws, M6 x 20
   2	Sealing flange
   3	O-ring
   4	Screw, M6 x 30; oil guide housing to lower part of crankcase
   5	Oil level sensor
   6	Screw, M6 x 25; oil level sensor to oil guide housing

9. Tighten the bottom two screws between the transmission and oil guide housing > Screws between oil guide housing and transmission  . For details, see > 373527 REMOVING AND INSTALLING TRANSMISSION - "Installing"

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   Screws between oil guide housing and transmission

10. After fitting the oil guide housing, the connecting tubes (oil lines and oil pipes) between the oil pump and oil guide housing must be fitted. On the Turbo, fit the side oil suction pipes. See illustrations.

Fig 2: Oil Lines Components Location - Turbo Engine

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Oil lines on turbo engine

Fig 3: Oil Lines Components Location - Naturally Aspirated Engine

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Oil lines on naturally aspirated engine

Fig 4: Oil Lines Components Location - Intake Pipe On Turbo Engine

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Oil lines, intake pipe on turbo engine

Fig 5: Oil Lines Components Location - Intake Pipe On Naturally Aspirated Engine

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Oil lines, intake pipe on naturally aspirated engine