- Camshaft Adjuster Unit - Mechanical - Timing Chain (OEM) for B6-B7 S4, C5 A6-allroad w/ Chain 4.2L
Camshaft Adjuster Unit - Mechanical - Timing Chain (OEM) for B6-B7 S4, C5 A6-allroad w/ Chain 4.2L
CHECK OUT OUR LOWER COST REPAIR KITS! A JHM EXCLUSIVE! Just search our site for 079109087N.
This is a brand new, OEM Mechanical Camshaft Adjuster Unit for the B6-B7 S4 or the C5 A6-allroad with the chain driven 4.2L 40 valve V8. There is one mechanical adjuster per head, so one motor will require two adjusters.
We have seen these adjusters fail with as little as 70,000 miles on them. These adjusters are essentially made out of two pieces. One side of the adjuster has a pin sticking out of it that slides into a hole. This hole that the pin drops into eventually wallows out and doesn't allow the adjusters to properly set the timing of the camshaft. As these units fail, you may experience both misfires and poor engine performance.
This part features the latest updated part number and comes directly from Audi. The OEM Part Number is 079109087N or 079 109 087 N.
NOTE: When replacing this part, you'll also need to replace the Bolt that secures it to the camshaft along with the Electric Cam Actuator. These bolts are torque to yield and keep the motor in time by metal to metal contact and the amount of torque applied to the bolt. You can find this bolt in the same section as this adjuster or search for "mechanical adjuster bolt" in the search bar. Each adjuster requires 1 bolt, so one motor will need two.
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|Audi||allroad||C5 (2001-2005)||4.2l V8 40v|
|Audi||S4||B7 (2005.5-2009)||4.2l V8 40v|
|Audi||S4||B6 (2003-2005)||4.2l V8 40v|
|Audi||A6||C6 (2005.5-2011)||4.2l V8 40v|
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(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system. Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.
As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).
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