Engine, removing
WARNING: This page is about a different car, the 2008 Audi RS 4 and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- With lock carrier removed, engine is removed downward with transmission and subframe.
- Drained coolant must be stored in a clean container for disposal or reuse.
- During installation, re-install all heat insulation sleeves and heat shields at the same locations.
- All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.
Special tools, testers and auxiliary items required
- Old oil collecting and extracting device V.A.G 1782
- Hose clamp pliers V.A.G 1921
- Step ladder VAS 5085
- Scissor lift platform VAS 6131 with support set for Audi VAS 6131/10
- Drip tray for workshop crane VAS 6208
NOTE:
- If engine and transmission are to be separated after removal, the supplementary set VAS 6131/11 and adapter VAS 6131/10-12 (qty. 2) will be additionally required.
Work procedure
- Raise luggage compartment floor covering and secure.
CAUTION:
Observe safety precautions when disconnecting the battery →
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL for ELECTRICAL EQUIPMENT, CABRIOLET
- With ignition switched off, disconnect Battery Ground (GND) strap - arrow -.
- Discharge refrigerant circuit Refrigerant R134a - Servicing.
- Extract hydraulic oil for power-steering from reservoir using old oil collecting and extracting device V.A.G 1782.
CAUTION:
Cover cap of coolant expansion tank with rag and open carefully, as hot steam or hot coolant may escape when opening.
- Open cap of coolant expansion tank.
- Remove both front wheels.
- Remove quick-release fasteners - 1 - , remove screws - 2 - and remove noise insulation.
- Remove bracket for noise insulation - arrows -.
- Remove left and right front wheel housing liners →
- 66 EXTERIOR EQUIPMENT
- 66 - EXTERIOR EQUIPMENT for BODY EXTERIOR - CABRIOLET
- Remove front bumper cover →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
- Remove left air guide - arrow - in front of auxiliary cooler.
- Remove bolt - arrow - on auxiliary cooler upper bracket, at left of lock carrier.
- Remove right air guide - arrow - in front of auxiliary cooler.
- Place old oil collecting and extracting device V.A.G 1782 under engine.
- Drain engine oil.
- Remove bolts - arrows - on oil cooler lines at upper part of oil pan.
- Remove oil lines from upper part of oil pan.
- Place drip tray for workshop crane VAS 6208 under engine.
- Remove drain plug - arrow - on coolant thermostat housing and drain coolant from engine.
- In addition, remove drain plug - arrow - on front coolant pipe and allow rest of coolant to drain.
- Loosen hose clamps - arrow - and remove coolant hose downward from cooler.
- Place old oil collecting and extracting device V.A.G 1782 under engine.
- Disconnect hydraulic lines to cooling coil at left rear of bumper - arrows -.
- Remove cover - 1 - in engine compartment (left side).
- Remove bolts - arrows -.
- Remove air duct - 1 - and - 2 -.
- Disconnect top coolant hose - arrow - from radiator.
- Remove electrical harness connectors - 1 - and - 2 - from bracket and disconnect them.
- Free up electrical wires to lock carrier.
- Disconnect electrical harness connector - arrow - for headlights at both sides of vehicle.
- Free up electrical wiring.
- Disconnect electrical harness connector - arrow - for left and right airbag sensors on lock carrier.
- Free up electrical wiring.
- Remove hood cable at lock carrier →
- 55 HOOD, LIDS
- 55 - HOOD, LIDS for BODY EXTERIOR - CABRIOLET
- Disconnect right radiator fan electrical connector - arrow -.
NOTE:
- To prevent damage to the refrigerant lines/hoses, ensure that the lines and hoses are not stretched, kinked or bent.
- Remove bolt - arrow - and disconnect refrigerant line to A/C compressor.
- Remove bolt - arrow - and disconnect refrigerant line to A/C evaporator.
- Remove right coolant hose - arrow -.
- Remove bolts - arrows - at left and right side of bumper.
- Pull off hood seal from lock carrier and fender edges.
- Remove bolts at impact absorbers - arrows - at left and right.
NOTE:
- A second technician is required to remove the lock carrier.
- Remove lock carrier and set aside so it cannot topple.
- Pull rear engine cover off - arrows -.
- Pull front engine cover off - arrows -.
- Remove coolant hoses - 1 - and - 2 -.
- Remove coolant expansion tank - arrow -.
- Disconnect electrical line at Engine Coolant Level (ECL) Warning Switch F66 at bottom of coolant expansion tank.
- Remove Ground (GND) connection - 2 -.
- Remove vacuum lines - 1 - and - 3 - to brake booster from distribution piece.
- Remove hose at Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 - arrow -.
- Free up hose.
- Disconnect electrical harness connector - arrow - on Brake System Vacuum Pump V192.
Fig 31: Disconnecting Electrical Harness Connector For After-Run Coolant Pump V51 (Behind Auxiliary Cooler At Left)
- Disconnect electrical harness connector - arrow - for After-Run Coolant Pump V51 (behind auxiliary cooler at left) and free up electrical wire.
- Disconnect vacuum hose - arrow -.
NOTE:
- Place a rag under separating point to catch escaping hydraulic fluid.
- Remove hose - arrow - at power steering fluid reservoir.
- Disconnect coolant hoses at positions indicated by - arrows -.
- Remove coolant hose from thermostat housing - arrow -.
- Remove coolant hoses to oil cooler at engine and to generator - arrows -.
- Disconnect coolant hoses at positions indicated by - arrows -.
- Remove bolts - 1 to 3 -.
- Remove bracket for front torque support.
Fig 39: Identifying Mass Air Flow (MAF) Sensor G70 Electrical Harness Connector, Secondary Air Injection (Air) Pump Hose, Vacuum Lines & Air Guide Hose
- Disconnect electrical harness connector - 4 - at Mass Air Flow (MAF) Sensor G70.
- Disconnect hose - 5 - to Secondary Air Injection (AIR) pump.
- Pull off vacuum lines - 1 - and - 6 -.
- Disconnect air guide hose - 3 - at Mass Air Flow (MAF) sensor.
- Free up electrical wiring harness at air filter housing.
- Remove clip - 2 - and remove air filter housing with Mass Air Flow (MAF) sensor.
NOTE:
- Ignore - arrows -.
Fig 40: Removing Hose At Secondary Air Injection Pump By Pressing Release Buttons & Disconnecting Electrical Harness Connectors
- Remove hose - 1 - at secondary air injection pump by pressing release buttons.
- Disconnect electrical harness connectors - 2 - and - 3 -.
- Free up electrical wiring.
- Disconnect vacuum hose - 2 - from air guide hose.
- Remove hose clamps - 1 - and - 3 - and lay air guide hose aside.
CAUTION:
Hose connectors must not be opened.
- Remove bolts - 1 -.
- Disengage retaining clip - 2 - and remove rear engine cover bracket.
CAUTION:
Fuel system is under pressure! Before opening system, place clean rags around the connection. Then release pressure by carefully loosening the connection.
- Disconnect fuel supply line - arrow - at fuel rail.
- Remove rubber seal and plenum chamber cover - 1 - forward - arrows -.
- Pry off cover caps - 3 - from wiper arms with a screwdriver.
- Loosen nuts - 4 - several turns.
- Loosen wiper arms - 2 - one after another by tilting wiper axles slightly.
- Remove nuts completely and remove wiper arms.
NOTE:
- If wiper arm cannot be removed in this way, use a standard puller.
- Disconnect securing clips - 1 - and remove cowl grille - 5 -.
- Remove cover for E-Box in plenum chamber - arrows -.
- Using a screwdriver, carefully pry off mounting bracket - arrow - and remove Engine Control Module (ECM) from E-Box.
NOTE:
- Engine Control Module (ECM) remains connected at wiring harness.
- Release retaining hooks - arrows - toward outside and remove retaining bracket.
Fig 48: Disconnecting All Electrical Harness Connectors On Connector Station & Electrical Wire Connection
- Disconnect all electrical harness connectors on connector station - 2 -.
- Disconnect electrical wire connection - 1 -.
- Disengage locking mechanisms - arrows - and remove secondary relay carrier in E-Box toward top.
- Disengage engine wiring harness at E-Box and bulkhead.
- Disconnect electrical connectors - 1 - and - 2 -.
- Free up wiring harness.
- Set electrical wiring harness on engine and secure Engine Control Module (ECM) against falling down.
- Remove bolts - arrows -.
- Remove engine control module (ECM) 2 bracket.
- Place ECM 2 on engine and secure it against falling down.
- Remove Ground (GND) pins - 1 - and remove Ground (GND line underneath.
- Remove bolt - 2 - and disengage positive terminal pick-off at mount.
Fig 52: Releasing Retaining Clip And Open Cover Over Positive Terminal Pick-Off, Cover Over Electrical Lines & Removing Nut On Positive Line
- Release retaining clip and open cover - 2 - over positive terminal pick-off.
- Release cover - 3 - over electrical lines.
- Remove nut - 1 - on positive line.
- Pull plus wire through bulkhead toward front.
- Free up the wiring harness.
NOTE:
- Ignore - 4 -.
- Remove heat insulation sleeve over coolant hoses to heat exchanger.
- Remove lower coolant hose - arrow - at heat exchanger.
- Slide coolant hose back down slightly through rubber sleeve.
Fig 54: Identifying Secondary Air Injection (AIR) Pump Motor V101 Electrical Harness Connector, Long Member Ground (GND) Wire & Right Engine Bracket Electrical Connectors
- Disconnect electrical harness connector - 1 - at Secondary Air Injection (AIR) Pump Motor V101.
- Remove Ground (GND) wire - 2 - on long member.
- Disconnect - 3 - and - 4 - at right engine bracket and at Generator (D+).
- Free up wiring harness upward.
- Place old oil collecting and extracting device V.A.G 1782 under engine.
- Disconnect hydraulic pressure line - arrow - for power-steering at left next to oil pan.
- Remove bolts and nuts - arrows - uniformly at left and right.
- Remove stabilizer.
NOTE:
- To prevent damage to the refrigerant lines/hoses, ensure that the lines and hoses are not stretched, kinked or bent.
- Remove bolts - 1 - and - 2 -.
- Remove right refrigerant line from A/C compressor.
NOTE:
- The left refrigerant line will be removed at a later point in time.
- Seal open connections on A/C compressor using clean plugs.
- Remove bracket for refrigerant lines at left front on oil pan - arrow -.
- Remove bracket for refrigerant lines at left rear on oil pan - arrow -.
- Remove bracket for refrigerant lines at right on oil pan - arrow -.
- Remove coolant line retaining clamp at right of auxiliary cooler - arrow -.
- Remove bolt - arrow - and disconnect refrigerant line to A/C compressor.
- Have a second technician press foot brake.
CAUTION:
To loosen collar bolt for drive axle, the wheel bearing must not be under load (vehicle must not be standing on its wheels).
- Remove collar bolt - 2 - at left and right drive axles - 1 -.
- Disconnect electrical harness connector - 2 - at Left Front Level Control System Sensor G78.
- Unclip securing clip - 1 - at Left Front Level Control System Sensor G78 actuating rod at bottom of control arm.
- Remove suspension strut from link - arrow -.
- Remove expanding clips - arrows -.
- Remove nut - 1 - and remove cover behind wheel housing.
- Remove guide link - 1 - and link - 2 - on subframe.
- Pivot guide link - 1 - and link - 2 - outward.
CAUTION:
Guide link and link must not hang free. Tie up both links on wheel bearing housing - arrows
- as shown in illustration.
- Repeat work procedure on opposite side of vehicle.
- Remove heat shield - 1 - for left drive axle.
- Remove drive axle from transmission flanged shaft.
- Swing left wheel bearing housing outward and remove drive axle.
- Repeat work procedure on opposite side of vehicle.
NOTE:
- Flex joint in front exhaust pipe must not be bent more than 10 ° , otherwise it may be damaged.
- Disconnect exhaust system at clamping sleeves - 1 - and - 2 -.
- Remove heat shield - A - for drive shaft - arrows -.
- Remove bolts at transmission/drive shaft flange.
- Push drive shaft together with rear final drive. The constant velocity (CV) joints can move axially.
- Tie up drive shaft to body.
Prepare scissor lift platform:
- Equip scissor lift platform VAS 6131 with support set for Audi VAS 6131/10 as follows:
| Platform coordinates | Parts from Support Set VAS 6131/10 | |||
|---|---|---|---|---|
| B4 | /10-1 | /10-4 | /10-5 | /10-12 |
| G3 | /10-1 | /10-4 | /10-5 | /10-6 |
| B10 | /10-1 | /10-2 | /10-5 | /10-8 |
| G10 | /10-1 | /10-2 | /10-5 | /10-8 |
| C14 | /10-1 | /10-3 | /10-5 | /10-7 |
| E14 | /10-1 | /10-3 | /10-5 | /10-7 |
- Install attachments on scissor lift table by hand first.
- Place scissor lift platform VAS 6131 in horizontal position.
- Note bubble level (sight glass) on support platform.
- Drive scissor lift platform VAS 6131 under engine/transmission subassembly.
- Position support elements from VAS 6131/10 at front on engine as shown in illustration.
- Position support elements from VAS 6131/10 at left and right on subframe as shown in illustration.
- Position support elements from VAS 6131/10 at left and right on tunnel cross member as shown in illustration.
- Twist all spindles of support elements upward far enough until all support pins make contact at support points.
- Tighten base plates for support elements to 20 Nm on scissor lift platform VAS 6131.
- Mark installation position of subframe and of both engine mount plates to long members using a felt-tip marker.
- Remove bolts - 1 to 4 - in diagonal sequence and in stages.
NOTE:
- Verify that all hoses and lines between engine/transmission subassembly and body have been disconnected.
- While lowering, carefully guide engine/transmission subassembly with subframe out of engine compartment in order to prevent damage.
Fig 77: Lowering/Lifting Engine/Transmission Assembly Using Scissor Lift Platform VAS 6131 Only Approx. By Dimension
- First lower engine/transmission assembly using scissor lift platform VAS 6131 only approx. by dimension - a -.
- Dimension - a - = max. 100 mm.
- Disconnect connecting rod - 2 - of shift rod.
- Remove socket head bolt of pivot rod - 1 -.
- Remove nut - arrow - and remove lever from selector shaft.
- Remove clutch slave cylinder - arrow - , do not disconnect lines.
- Tie up clutch slave cylinder together with shift rods.
CAUTION:
Do not operate the clutch pedal anymore after slave cylinder has been removed. At a pedal pressure of approx. 300 N, the clutch slave cylinder is destroyed.
- Remove coolant hose - arrow - to heater core on rear coolant pipe.
- Lower engine/transmission subassembly downward.
- Push scissor lift platform VAS 6131 with engine/transmission subassembly under vehicle.