Engine, Installing

2018 Audi A5 Quattro Prestige, 2D ConvertibleSECTION Engine, Installing
WARNING: This page is about a different car, the 2020 Audi A3, 2019 Audi A3, and 2018 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Tightening Specifications 

  • The tightening specifications only apply to lightly greased, oiled, phosphated or blackened nuts and bolts.
  • Additional lubricants, such as engine or transmission oil are permissible, although lubricants containing graphite are not.
  • Do not use any ungreased parts.
  • Tightening specification tolerance: ±15%.
Component Nm
Bolts and nuts M6 10
  M7 15
  M8 20
  M10 40
  M12 65

Procedure 

  • Replace the bolts that were tightened with an additional turn.
  • Replace the self-locking nuts and bolts, gaskets, seals and O-rings.
  • Secure all hose connections with hose clamps that match the ones used in series production.
  • During installation, all cable ties must be installed at the same location.
  • Used coolant cannot be used again.

-- Attach the transmission to the engine. Refer to TRANSMISSION, INSTALLING .

-- Install the starter. Refer to STARTER, REMOVING AND INSTALLING .

-- Guide the engine/transmission assembly into the body.

-- Install the bolts -arrows- for the engine mount by hand all the way.

GWWA10-11808Courtesy of AUDI OF AMERICA, LLC

-- Install the bolts -arrows- for the transmission mount by hand until it is in position.

Fig 1: Identifying Bolts
GWWN10-10748Courtesy of AUDI OF AMERICA, LLC

TIP:

Only tighten the bolts to the final specification when adjusting the subframe mount. Refer to OVERVIEW - SUBFRAME MOUNT .

-- Remove the :T10359A  from the engine.

-- Install the drive axles. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Install the drive axle heat shield. Refer to DRIVE AXLE HEAT SHIELD, REMOVING AND INSTALLING .

AWD Vehicles:

-- Attach the driveshaft to the bevel box. Refer to appropriate service information. .

Continuation for All Vehicles:

-- Install the A/C compressor. Refer to OVERVIEW - A/C COMPRESSOR POWER UNIT .

-- Install the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

-- Install the parking heater muffler. Refer to appropriate service information. .

-- Install the air duct pipes and hoses. Refer to OVERVIEW - CHARGE AIR HOSE CONNECTIONS .

-- Install the fan shroud. Refer to FAN SHROUD, REMOVING AND INSTALLING .

Vehicle with Manual Transmission:

-- Install the cables with the cable bracket. Refer to OVERVIEW - SELECTOR MECHANISM .

-- Install the hose/line assembly on the bleeder. Refer to appropriate service information. .

Vehicles with Dual-Clutch Transmission:

-- Install the gearshift lever cable and adjust. Refer to SELECTOR LEVER CABLE, CHECKING AND ADJUSTING .

Continuation for All Vehicles:

-- Adjust the subframe mount. Refer to SUBFRAME MOUNT, ADJUSTING .

-- Connect the fuel supply line. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

-- Install the catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .

-- Install the battery tray. Refer to BATTERY TRAY, REMOVING AND INSTALLING .

-- Electrical connections and routing. Refer to OVERVIEW - RELAY CARRIERS, FUSE PANELS AND E-BOXES and => Wiring Diagram.

-- Install the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Install the subframe. Refer to SUBFRAME WITHOUT STEERING GEAR, REMOVING AND INSTALLING .

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Fill the engine oil or check the oil level. Refer to appropriate service information.

CAUTION:

There is a risk of destroying the control modules due to excessive voltage.

- Do not use a battery charger to jump start!

-- Connect the coolant hoses with the connector coupling. Refer to Fig 2.

Fig 2: Coolant Hoses Connector Coupling
GWWA19-12078Courtesy of AUDI OF AMERICA, LLC

-- Fill the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Delete the DTC memory entries in the engine control module using the Vehicle Diagnostic Tester.

Additionally after replacing the engine:

  • Perform a combustion misfire adaptation.
  • Adapt chain length.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.