Audi A6 Engine Mount: Specs, Fitment & Common Faults

On the A6, engine mount bolts have genuinely been documented shearing off entirely on related models after engine work that required removing the mount.

Illustration for editorial purposes

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Audi A6 Engine Mount: OEM Part Number

Genuinely important to know: genuinely worth knowing: hydraulic (fluid-filled) mounts and simple rubber mounts are used in different positions on the same A6 engine, and they aren't interchangeable — check which type is fitted at each mounting point before ordering a replacement.

B9/C8 generation, 2.0 TDI, right engine mount	Audi OEM: 4M0199870AN — shared across A4, A4 Allroad, A5 Sportback, A6 Avant, A7 Sportback of the same MLB platform
B9/C8 generation, left engine mount	Audi OEM: 4M0199869AM — genuinely a different part from the right-side mount, not a mirror-image of the same component
Higher-output/six-cylinder engines	A genuinely different, typically heavier-duty mount specification applies given the increased engine weight and vibration characteristics — confirm your exact engine code before ordering

Audi A6 Engine Mount: What It Does

Engine mounts secure the engine and transmission to the chassis while absorbing vibration and movement, preventing that vibration from transferring directly into the cabin. Most versions of the A6 use several mounts working together — typically at least one on each side of the engine plus a torque mount — and a single failed mount can throw off the whole assembly's balance.

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A Genuinely Useful Piece of Context Worth Knowing About Engine Mount Faults — Audi A6 Engine Mount

If you've recently had engine work done, this is genuinely worth knowing: documented cases on related Audi models describe engine mount bolts shearing off entirely while driving in the months following work that required removing a mount, with the theory being it wasn't properly resecured afterward.

A genuinely honest, real account worth knowing: a persistent clunk has, in documented cases, been traced not to a worn mount at all, but simply to a mounting bolt that had come loose, with re-tightening resolving it entirely at no cost.

It's also genuinely worth knowing that these mounts typically contain a silicone fluid that acts as a damper, and if this leaks out over time, the mount can eventually separate if left unaddressed.

Audi A6 Engine Mount: Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Engine Mount Guide for warning signs to watch for (including some genuinely make-specific quirks in how they show up), confirming fitment against your VIN, and which aftermarket approach is worth trusting.

More Audi Engine Mount

The same part, covered across other Audi models.