Abstract: A universal modular coil spring buffer having a plurality of modules arranged in a specific configuration adaptable to be inserted in the gap of a coil spring of a vehicle to prevent shocks. The plurality of modules includes a primary module and a plurality of secondary modules. The top surface and the bottom surface of the primary module includes an elongated groove configured to fix and hold the adjacent coils of the coil spring of the vehicle. The secondary module having a first module, a second module and a third module. The different configurations of the primary module and the plurality of secondary modules can be employed for different vehicles with different coil spring dimensions and based on the distance between the adjacent coils. The buffer lessens the compression to the coil spring thereby minimizing oil to leak caused from the shocks.