KW DDC - Plug & Play Coilover Kit to fit BMW 4 Convertible (F33, F83) (from 2013 onwards)


Part Number: 39020020
Quick Code: P443645

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KW DDC Plug & Play Coilover Kits

The Plug & Play solution of the KW DDC (Dynamic Damping Control) coilover kit was developed for cars that have standard Electronic Damper Control. The standard dampers can easily be replaced by the KW DDC coilover kit. The existing control unit and the interior switch that was installed for the operation of the original damper control will be kept. For the first time the KW DDC coilover kit combines the advantages of a KW coilover kit and the convenience of standard damper control. By pushing the original button, the driver can choose between vehicle-specific damper setups such as comfort, normal and sport.

This KW kit also allows for lowering between the TÜV certificated adjusting range, and the stainless steel technology "inox-line" guarantees that all parts remain movable, even under heavy use and winter weather conditions

  • The Plug & Play solution for increased handling or more comfort
  • Compatible with the factory OEM suspension control
  • Vehicle-specific damper setups such as Comfort / Normal / Sport
  • Operation via factory interior controls


This coilover kit will lower your vehicle 40 to 65mm at the front, and 40 to 65mm at the rear.

Compatible Vehicles

The part is compatible with the following versions of the BMW 4 Convertible (F33, F83) (from 2013 onwards):

  • 420 i - 2L Petrol 4cyl, 161hp, RWD Convertible
  • 420 i - 2L Petrol 4cyl, 181hp, RWD Convertible
  • 425 i - 2L Petrol 4cyl, 181hp, RWD Convertible
  • 428 i - 2L Petrol 4cyl, 240hp, RWD Convertible
  • 428 i - 2L Petrol 4cyl, 241hp, RWD Convertible
  • 435 i - 3L Petrol 6cyl, 300hp, RWD Convertible

An example VIN plate

Check Your VIN Plate

Before ordering, it's important to check your vehicle does not exceed the load rating of this product. The easiest way to do this is by checking your VIN plate, usually found in the engine bay, on the underside of the bonnet, or on the driver's side door pillar.

On the VIN plate will be a list of weights, in kilograms. The last two values are the front and rear axle load ratings of your vehicle respectively. For this product, the front axle load rating must be no more than 960kg, and the rear axle load rating must be no more than 1265kg.

For more details, click here to read our guide on checking load ratings on your vehicle's VIN plate.


The following documentation (fitting or adjustment instructions) is available for this product:

Tailor made for your car, this KW DDC - Plug & Play Coilover Kit needs to be fitted at a professional workshop. Most of our fitting centres will be able to offer a fitting service for this product - please contact your local Carnoisseur Fitting Centre to find out more.

Estimated by Tue 28th May 2024

Deliveries are made Monday to Friday and exclude weekends and public holidays.

We have an order cut-off time of 1PM on the days that we are open. Our estimated delivery date takes this into account.

If it is available, we will provide tracking information by email.

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UK Mainland excludes all islands and postcode areas IV, KW, PH, FK17-21, PA21-78

If you are ordering multiple items your total postage charge will be reduced. Please check your basket for the total cost.

  • Engines: 420 i, 435 i, 428 i, 425 i
  • for cars with electronic damping
  • Front lowering: 40-65mm
  • Rear lowering: 40-65mm
  • Front Axle Load Rating: up to 960kg
  • Rear Axle Load Rating: up to 1265kg
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