Porsche 997.1 PCM 2.1 Screen Replacement

Written By: m330cameron

Comments: 2

Porsche 997.1 PCM 2.1 Screen Replacement

Difficulty

Moderate

Steps

Time Required

1 hour

Introduction

In my case, I had to replace the screen due to the appearance of surface blisters. This not only looked unsightly, but the pixels distorted as well.

Tools

Parts

Sharp LQ058T5AR04 5.8 inch LCD Display

Step 1

This guide only shows the steps to change the screen once the PCM has been removed from the car. There are lots of great You Tube videos that cover the removal process.

Step 2

As the top of the unit says: the PCM should not be opened. Remove the two Torx T9 machine screws

Step 3

Carefully split the PCM case in half. There are several interlocking tabs, but essentially open from the front to the back like an oyster shell. The top half can be set behind the unit as shown in the second photo.
Do not use excessive force, the CD unit is in the top half and joined to the motherboard via a PC cable.

Step 4

Use a plastic spudger to disconnect the PC ribbon cable joining the CD player to the motherboard and place the CD unit safely to one side.

Step 5

Remove the two Torx T9 machine screws that attach the front facia to the chassis. There is one screw either side as shown in the photos.

Step 6

Open the ribbon cable lock (there is probably a proper name for it) and remove the ribbon cable on the left hand side of the unit.

Step 7

This is the most difficult step in the process. Firstly, identify the four tab retainers holding the facia to the chassis. The three photos show them all.

Step 8

A curved metal spudger seemed to work well for this. Each tab had to be carefully leveraged up to disconnect them from the facia.

Step 9

Working around the tabs, the facia can be gently pried off the chassis. This requires patience and care.
When the facia has come apart from the chassis, care is required as the two are still connected with another two PC ribbon cables.
The third photo shows the fixed connector which needs careful realignment on reassembly.

Step 10

Use a spudger to disconnect the PC ribbon cables connecting the facia to the chassis.

Step 11

The two halves of the facia are connected using 14 torx T9 self tapping screws.
If you only find thirteen, you have missed one of the little blighters. If you only find twelve.. well see previous comment but add one to the list of missed fasteners. The back of the casting is show as it better indicate the fastener placements.

Step 12

Once all 14 torx T9 screws have been found and undone, there are two tabs remaining that need to be disconnected before the facia comes apart.
Once the two halves are separated, the three ribbon connectors need to be carefully threaded through the holes in the back of the facia casting.

Step 13

The first photo shows the location of the screen carrier clips. Once these are released with a spudger, the screen carrier can be released, the small grey ribbon connector can be gently pushed out the way when this is done.

Step 14

Use a spudger to disconnect the orange/white cable. This only reconnects one way. Unhook the orange/white cable from the screen carrier and the carrier will lift away from the screen.

Step 15

Disconnect the ribbon cable using the same technique that was done at the other end, where it connects to the motherboard.

Step 16

Transfer the ribbon cable to the new screen.

Conclusion

To reassemble your device, follow these instructions in reverse order.

2 comments

This guide saved me a lot of money. Follow it and don’t be scared. It’s actually a fairly easy job.

Bill Berry -

guide worked great, thank you! one additional caution. the pins on the data ribbon connecting the display to the electronics are very fragile and can easily separate from the plastic. when reinserting the ribbon into the socket use great care not to bend the pins. thankfully I was able to straighten the pins by hand and make a good connection, otherwise I was preparing to shopping for a replacement ribbon on amazon :)

douirc -