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Writer's pictureJustin Schaub

HOW TO INSTALL MTS TECHNIK COILOVERS ON YOUR E9x



The BMW E9x chassis has quickly become a popular chassis for modifying after the wild successful E46. The rear drive, a wide range of engines and of course the ability to lower the center of gravity for better handling is a recipe for success. Proper assembly of coilover suspension will allow for comfortable use for a long time. If you do not have the conditions to replace the suspension, it is worth ordering a specialized workshop that will do it in a skillful and safe way. The basis is, of course, a solid lift that will allow you to work freely with a car hanging in the air. We will start the process with the necessary tools for the job.


Assembling the suspension – front axle


After making sure that the car is properly on the lift, you can start work by pulling off the wheels. After obtaining full access to the wheel arches, use a penetrating oil on all applicable suspension bolts for ease of removal.



To disassemble the front shock absorber, unscrew the lower wishbones and the stabilizer link. Then, using the wrench and ratchet with the socket you can unscrew the lower mounting of the shock absorber. After unhitching the car, you can unscrew the upper mounts and pull the strut out of the car.



The next step is to assemble the MTS Technik threaded strut before installing it in the car. A shock absorber top mount should be attached to the strut provided by them. Their suspension is designed to be able to work with a mount from a stock shock, but we recommend the installation of a new mounts that fits into the new coilover suspension. MTS Technik caster/camber plates are also available.


The finished MTS Technik threaded strut can be installed in the car, assembling it in the reverse order of the procedure for removing the standard suspension. The final torquing of the upper fasteners should be made when the car is on wheels and its entire weight properly presses on the coilovers.


Assembling the suspension – rear axle


When the front is already mounted, you can proceed to replacing the rear axle suspension. Here, the MTSGWBM12 set is based on three components – a spring, a damper and height adjuster.



Unscrewing the lower bolt of the shock absorber allows you to loosen the swingarm that holds the spring.To remove the rear shock, unscrew the upper mountings hidden under the trunk cover.


After removing the stock rear suspension, it is time to install MTS Technik products in their new home. Remove the OEM rubber mount and replace it with the aluminum adjustable spring seat included with the kit. It will be fitted with the spring and will allow a smooth change in the height of the car.



When the rear axle is assembled together, there is nothing left to do to but mount the wheels and enjoy your new ride. You may have to adjust the height for each corner to match your desired look. After this is set, we recommend getting an alignment on the car to prevent premature wear to your tires.



For complete written instructions, you can download the MTS Technik installation guide here:


We offer MTS Technik coilovers for E90, E92, E90 xi, and E92 xi in comfort, street, or sport versions:


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