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Home >> Audi >> 2025 >> S4 Premium >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> Lubrication (Servicing - 6-Cylinder 2.9L; 3.0L 4V TFSI Ea839 Engine) >> 17 Lubrication >> Engine Oil Cooler >> Engine Oil Cooler, Removing And Installing >> Installing

Engine Oil Cooler, Removing And Installing: Installing

Install in the reverse order of removal, while noting the following:

CAUTION:

Risk of contaminating the lubricating system and the bearing.

- Cover open engine components.

Fig 1: Cleaning Sealing Surfaces
GWWA17-10940Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of injuring the eyes from sealant residue.

- Wear protective eyewear.

-- Remove the sealant residue on the cylinder block and the engine oil cooler -1-, for example using a rotating plastic brush.

-- Clean any oil or grease off the sealing surfaces.

-- Cut the tube nozzle at the front marking (nozzle diameter: about 2.5 mm).

GWWA17-11065Courtesy of AUDI OF AMERICA, LLC
CAUTION:

There is a risk that the lubrication system could be blocked by excess sealant.

- Do not apply sealant bead thicker than indicated.

-- Insert the seals -2 and 3-.

-- Apply the sealant bead -1- to the clean sealing surface on the cylinder block.

-- Position the engine oil cooler and tighten the bolts.

Install in reverse order of removal. Note the following:

-- Check the oil level. Refer to ENGINE OIL .

There are different procedures depending on the model. Refer to ENGINE OIL COOLER, REMOVING AND INSTALLING .