Audi 4.0T Cylinder on Demand (Cylinder Deactivation) Solenoid Delete Plugs (C7002A0)

$119.99

In stock and shipping immediately.

These handy plugs seal up the holes when you remove your COD solenoids.

Set of 17. 16 for the holes and 1 for when you inevitably drop one in to Never Never Land. 17th converts to a keychain as a reward if you don’t lose one.

Before deleting your plugs, pull unplug some of them and make sure you don’t have any codes. The COD system must be coded out completely, not just made inactive as most off-the-shelf tunes do, or else you’ll get a CEL and the car may not run right.

Does not include the aluminum screws shown in the pictures, link below to buy those.

Quantity:
Add To Cart

In stock and shipping immediately.

These handy plugs seal up the holes when you remove your COD solenoids.

Set of 17. 16 for the holes and 1 for when you inevitably drop one in to Never Never Land. 17th converts to a keychain as a reward if you don’t lose one.

Before deleting your plugs, pull unplug some of them and make sure you don’t have any codes. The COD system must be coded out completely, not just made inactive as most off-the-shelf tunes do, or else you’ll get a CEL and the car may not run right.

Does not include the aluminum screws shown in the pictures, link below to buy those.

In stock and shipping immediately.

These handy plugs seal up the holes when you remove your COD solenoids.

Set of 17. 16 for the holes and 1 for when you inevitably drop one in to Never Never Land. 17th converts to a keychain as a reward if you don’t lose one.

Before deleting your plugs, pull unplug some of them and make sure you don’t have any codes. The COD system must be coded out completely, not just made inactive as most off-the-shelf tunes do, or else you’ll get a CEL and the car may not run right.

Does not include the aluminum screws shown in the pictures, link below to buy those.

The COD system is a weak point in the 4.0T. The lobes for each cylinder slide on a spline on the camshaft and over time wear and get stuck. If this happens, the car will be go to limp mode and run very poorly. Many aftermarket tuning companies already disable the COD system. This kit allows you to go a step farther and completely remove the solenoids and plug their holes. Doing this saves 2.5 lbs, and if you remove the wires as well, makes spark plug and coil pack servicing much easier.


To install, first remove the COD solenoids by gently prying them or using a pliers to pull up from the body. They’ll come out easy if you pull straight out. Transfer over the o-ring from the solenoid to the delete plug and press firmly into the hole to seat the o-ring.

Careful not to drop them; they fall into some weird places and are not magnetic…

Link to an aluminum version of the screws if you want to go lighter: https://www.mcmaster.com/98511A745/

Link to the steel version of the screws if you just lose some: https://www.mcmaster.com/90128A234/


  • Fits the Audi 4.0T found in the C7 S6/S7/RS6/RS7 and D4 A8/A8L/S8.

Audi B8/C7/D4 Spherical Rear Lower Control Arm Inner Bushings (B8003A0)
from $379.99
Audi B6/B7/C7 Spherical Front Upper Strut Mounts (B6001A0/B6001A1)
from $299.99
Audi B8/C7/D4 Spherical Rear Upper Control Arm Offset Bushings (B8001A1)
from $424.99
JXB Retrofitted WaveTrac Rear Limited Slip Differential for Audi B8/C7/D4
from $2,299.99
ARP Crank Pulley Bolt Kit - Audi 3.0T Engine (HDW02A0/1)
from $109.99