Peugeot 407 Display Repair or Replacement

[BadIdea]

Me again

My central display is faulty, starting off fairly legible when firing up the car, then gradually fading out to almost nothing by the end of the journey. I understand that this is a fairly common problem. Is the best solution simply to replace the screen with a genuine OEM unit for around £150 or so?

[GiveMeABreak]

You'll need part number: 9821852480 for your 407, currently retailing at Peugeot for £319.50 inc. VAT. for reference.

So if searching for a new one, make sure it has this part number and a word of caution, ALWAYS either disconnect the battery following the BSI Reset / Battery Disconnect / Reconnect Procedure or remove the power connector from the RD4 head unit first and reconnect last. Not doing so can cause electrical surges to the display screen and fry it.

[Paul-R]

Is it at all temperature dependant? i.e., does it take longer to disappear when the weather's cold? Or maybe the converse?

[moizeau]

Yours will be the old Borg unit (white plastic) If you find one in a tat yard off a same spec 407 make sure it is a Johnson Controls (black plastic). The socket is on the other side which makes the cabling a bit tight. It's a common problem with the Borg units, especially over here where it's warmer. The telephone option, if you have it, is in the mfd as well as the car so make sure the donor car is the same as yours.

[GiveMeABreak]

He doesn't have the telephone option - it's an RD4 not an RD45 Pete, to avoid any potential confusion.

[BadIdea]

Is it at all temperature dependant? i.e., does it take longer to disappear when the weather's cold? Or maybe the converse?

If I had to guess, I'd say it's probably temperature dependent as it gets progressively worse the longer it's powered on for. I've only had the car a few weeks, however, so I've only run it in cool/cold weather.

[BadIdea]

Yours will be the old Borg unit (white plastic) If you find one in a tat yard off a same spec 407 make sure it is a Johnson Controls (black plastic). The socket is on the other side which makes the cabling a bit tight. It's a common problem with the Borg units, especially over here where it's warmer. The telephone option, if you have it, is in the mfd as well as the car so make sure the donor car is the same as yours.

I was thinking I'd probably go for a new unit to avoid getting one that ends up deteriorating in the same way, unless the 'Johnson Control' unit is more robust.

[moizeau]

The Johnson Controls unit is more robust. Beware, there are a lot Chinese items out there. They do work but have a different display colour and limited menu options.

[David_CH]

Hi ! this happened to me just yesterday. But it was my mistake, i've turned on the "auto brightness" option on the radio menu. After deactivating this function, my display is bright as before.

[moizeau]

This is a different issue David. The old screens (Borg) begin to breakdown over time, they work initially then as they get warmer the screen becomes pixellated and unreadable, it gets worse the warmer it gets.

[BadIdea]

The Johnson Controls unit is more robust. Beware, there are a lot Chinese items out there. They do work but have a different display colour and limited menu options.

There's a seller on eBay selling new Johnson Control units for around £160, so I may go for that.

[BadIdea]

Is this a Johnson Controls unit?

[GiveMeABreak]

Yes - you can also see the label 'JCE'