Removing and installing engine mounting (right-side) with electro-hydraulic engine mounting solenoid valve (right-side)N145 - R8 Coupé — AUDI
Removing and installing engine mounting (right-side) with electro-hydraulic engine mounting solenoid valve (right-side)N145 - R8 Coupé on Audi: 15 steps.
This procedure applies to the Audi R8 Coupé 2007–2015 (42) with engine codes BYH and CNDA and covers the right-hand engine mounting that carries electro-hydraulic mounting solenoid valve N145. On a mid-engined car the mounting is reached from above: the rear lid goes into service position with the knurled sleeves tightened, the engine compartment trim panels and engine cover come out, and the alternator has to be removed. The engine and gearbox assembly is then taken up on gearbox support T40150, with adapters T40150/1 and T40150/2 on the body braces and spindles T40150/6 hooked into the front lifting eyes, until the sump underside is level with the top of the cross member. After the heat shield is off and N145 unplugged, the mounting is unbolted. Secure support of the drivetrain is the whole job.
🧭 Before you start
Protect the bodywork, remove the trim panels and engine cover, set the rear lid in service position and remove the alternator. Fit gearbox support T40150 and lift the engine until the sump is level with the cross member, remove the heat shield, unplug N145 and unbolt the mounting. Refit in reverse: new mounting, connector, alternator, engine cover and trim panels.
Fits: platform code 42
- Special tools named: T40150/6
Don't miss
- Tighten the knurled sleeves before putting the rear lid in service position.
- Lift only until the sump underside is in line with the top of the cross member.
- Unplug the N145 solenoid valve connector before unbolting the mounting.
- Check the drivetrain is securely held on T40150 before removing the mounting bolts.
Written for this job from the workshop steps below · TorqFix editorial.
📐 1 workshop diagram for BYH
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Fit protective covers on bodywork .
- Remove engine compartment trim panels on both sides 53.
- Remove engine cover panel .
- ⚠ Risk of accident.Knurled sleeves (arrows) must be tightened before working on vehicle. — Move rear lid to service position 55.
- Remove alternator Electrical system27.
- Remove bolts for engine mounting (right-side) (arrows).
- Attach components of gearbox support T40150 as shown in illustration; to do so, position adapter T40150/1 (left-side) and adapter T40150/2 (right-side) onto body braces.
- Attach hooks of spindles T40150/6 to front engine lifting eyes.
- Use spindle to lift engine/gearbox assembly until the underside of the sump (arrow B) is in line with the top of the cross member (arrow A).
- Remove bolts (arrows) and detach heat shield.
- Unplug electrical connector (4) on solenoid valve (right-side) for electro-hydraulic engine mounting N145.
- Remove bolts (1, 2, 3) and detach engine mounting (right-side). [Note: Disregard (arrow).]
- Install alternator Electrical system27.
- Install engine cover panel .
- Install engine compartment trim panels 53.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.