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Identifying and Removing Your Under Body Trays
 
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Pelican Technical Article:

Identifying and Removing Your Under Body Trays

Steve Vernon

Time:

1 hour1 hr

Tab:

$0

Talent:

*

Tools:

8mm socket, floor jack, jack stands, wheel chocks, safety glasses

Applicable Models:

Mercedes-Benz W204 (2008-15)

Hot Tip:

Give yourself as much room as you can under the car

Performance Gain:

Access to systems under the car

Complementary Modification:

Oil and Filter

Like most modern cars the Mercedes-Benz W204 series has a series of under body trays on the car. These trays are used for a multitude of reasons. It is important that if you remove the tray to perform work that you replace it prior to putting the car back on the road. The trays are used to protect the underbody of the car and the systems attached to it. They also keep the weather and elements out of certain areas. Some panels divert air to assist in cooling certain systems on the car. Another added benefit is that the trays aid the airflow under the car. This will help to increase your fuel economy.

There are six trays on the bottom of the car: this does not include any wheel well covers.
Figure 1

There are six trays on the bottom of the car: this does not include any wheel well covers. Starting at the front there are two engine trays (green arrows), one transmission cover (yellow arrow), two side trays (red arrows) and one at the rear beside the gas tank (blue arrow).

To remove the engine trays you will start with the rear tray, as some of its fasteners also hold the forward engine tray in place.
Figure 2

To remove the engine trays you will start with the rear tray, as some of its fasteners also hold the forward engine tray in place. Use an 8mm socket and remove the six fasteners (red arrows).

The four forward fasteners hold the rear engine tray on top of the forward tray (red arrows, three shown).
Figure 3

The four forward fasteners hold the rear engine tray on top of the forward tray (red arrows, three shown).

With the fasteners removed you can lower the tray.
Figure 4

With the fasteners removed you can lower the tray. There is a small plastic hook on the crossbeam support that you need to be aware of.

Remove the six remaining 8mm fasteners on the front tray.
Figure 5

Remove the six remaining 8mm fasteners on the front tray. Then you can lower it from the vehicle.

With these two trays off you have access to the systems under the engine.
Figure 6

With these two trays off you have access to the systems under the engine.

To remove the transmission tray use an 8mm socket and remove the six remaining fasteners (red arrows).
Figure 7

To remove the transmission tray use an 8mm socket and remove the six remaining fasteners (red arrows). Two of the front fasteners will have already been removed when removing the rear engine tray (yellow arrows).

With all three trays removed you have access to both the engine and transmission along with all the other systems under the vehicle.
Figure 8

With all three trays removed you have access to both the engine and transmission along with all the other systems under the vehicle. There is very little need to remove the side trays but if you need to just remove the 8mm fasteners, and they drop down. Installation is the reverse of removal.



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Page last updated: Wed 12/7/2016 02:54:40 AM