Is it dangerous to keep driving with this fault?

Not critical immediately, but you’ll notice reduced performance, especially at low RPM — repair when convenient.

Why does the mechanism stick or fail?

Most often carbon buildup on the moving flap or shaft, or a failed vacuum actuator/electric motor that operates it.

Can it be cleaned instead of replaced?

In some cases, yes — cleaning carbon deposits from the mechanism can restore free movement, but a failed actuator itself needs replacing.

Mechanism for changing the length of the intake manifold AUDI A6 AVANT 2007 QUATTRO

Name: Mechanism for changing the length of the intake manifold AUDI A6 AVANT 2007 QUATTRO
Brand: AUDI
SKU: 059129086M-1
Price: 45.00 EUR
Availability: InStock

OEM: 059129086M-1

Disassembled car photo

Engine running

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Guaranteed quality
Fast delivery 3–7 days
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Details for this exact part

Code: 059129086M-1
OEM: 059129086M-1
Condition: Used
Availability: 2 in stock - ready to ship
Make, model: AUDI A6 2004-2008
Year: 2007
Engine: Diesel 3.0TDI 171KW - ASB
VIN: WAUZZZ4F97N146519

What is this part and why does it matter?

The variable intake manifold length mechanism switches the intake runner length to optimise torque across different engine speeds.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

Loss of power or torque in certain rev ranges
Check Engine light with an intake runner control fault code
Rattling noise from the intake manifold area

Installation information

Bolts to the intake manifold with a seal, and connects to a vacuum line or electrical actuator — check the actuator moves freely before finishing installation.

Frequently asked questions

It physically changes the length of the intake runners — shorter for high-RPM power, longer for low-RPM torque — giving the engine better response across the whole rev range.

Donor vehicle description

VIN: WAUZZZ4F97N146519
Make, model: AUDI A6 AVANT QUATTRO
Year: 2007
Engine: Diesel 3.0TDI 171KW - ASB
Transmission: Automatic - JML
Drive: 4WD
Equipment: LHD
Colour: C2 / Y7J

308 parts from this car

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