If you purchased a Mercedes-Benz vehicle over the past five years, you are about to discover that car repair is nowhere near as simple as it used to be. The days of dropping your car off for a simple bumper repair are forever in the past due to the advanced safety technologies in your vehicle. These technologies are commonly known as the advanced driver assistance systems or ADAS for short.
Some of the most common ADAS features are:
- Blind-spot monitoring
- Lane keep assist
- Rearview camera
- Forward collision warning
As with all OEM’s, Mercedes-Benz will release repair procedures that instruct technicians exactly how they should repair your car. When it comes to repairing bumper covers with ADAS, there is a specific procedure for what must be done and therefore any other repair method is wrong and can affect the safety and performance of the vehicle.
This is a very important distinction because not every auto body shop will take the time to do the research, perform the repair as Mercedes Benz directs it, and document the repair process. Now, more than ever, body shops are cutting corners and simply repairing bumpers to save the insurance company money. The problem is once you repair a bumper cover, you increase the thickness of it, and that will affect the sensors in the bumper that fed the ADAS system with information. If the data is flawed, it could adversely affect the function of the vehicle.
There are limitations on where and how many repairs can be made. This is because a wrong repair can cause severe damage to your car and the ADAS features to no longer work correctly.
What are the restrictions?
According to the Mercedes-Benz Driver Assistance Systems Technology Guide, “when accident repairs are performed, the paint coat thickness on the bumper must be observed, and filler repairs may not be carried out in the area of the sensors of the bumper.” This specifically means that you cannot repair a bumper cover, and instead, you must replace it with a new one even if the insurance company is refusing to pay for a new cover.
Another document states the “short-range radars” on the bumper cover also has restrictions on the filling and paint coat thickness. According to the repair manual, if the filling and paint coat exceeds a certain amount, it can cause the sensors to no longer perform their designated functions. This is because the sensors would “detect the excessive coat thickness as an obstacle.”
For Mercedes-Benz, these sensors are radars used on both the rear and front bumper covers. There may be up to four sensors across the bumper cover, limiting the area technicians can make repairs. The short-range sensors are used on the vehicles for rear and forward collision systems and blind-spot monitoring. The front and rear bumper covers both use these short-range radars. These radars will monitor what is in front and behind you like a pair of eyes.
What happens if the radars no longer work?
Of course, if these short-range radars no longer perform their designated functions, one of two things will happen. According to the Mercedes-Benz OEM repair manual, “if the short-range radar does not function correctly after painting, either the paint must be removed, or the bumper cover must be replaced.”
Who in Long Island can correctly perform a Mercedes-Benz bumper repair with ADAS?
Here at Mid-Island Collision, we are Long Island’s premier choice for luxury car repair. We are continually looking up the repair procedures for any car that comes into our shop. We make sure your car’s advanced technologies perform their designated functions, and you’re safe on the road.
We feel quite confident we’d be able to provide you with excellence in customer service and high-quality repairs that you deserve. If you’d like to schedule an estimate or to get a free online quote, click here to get started. Or, feel free to give us a call at anytime at (516)-766-0101.