capeboy Posted January 14, 2023 Report Share Posted January 14, 2023 Despite clearing all the drain holes a few weeks ago, the rear spoiler started playing up, then the rear brake light etc etc....on inspection, the passenger footwell and under the passenger seat were waterlogged. ECU module completely soaked in water... I have removed the seat and am busy drying the carpets. ECU part number 977.618.260.08 Is it worth drying the ECU and then trying to plug it in again? Or is a new one the only option? If so, has anyone used this service?: https://www.mdbdiagnostics.co.uk/product-page/porsche-987-rear-body-control-module-99761826008-coded-to-your-vehicle Any other advice gratefully received... Thanks. Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted January 14, 2023 Report Share Posted January 14, 2023 RCU rear control unit / module. General belief is that you can clean off corrosion for a time but it will find its way back again. I don’t know if cleaning it buys you 3 months or 3 years. Quote Link to comment Share on other sites More sharing options...
½cwt Posted January 14, 2023 Report Share Posted January 14, 2023 If it is any help, my 986' alarm control module (under passenger seat), has clearly got wet a some time and has some corrosion in places and needed a small wiring hack to bypass one circuit to make the interior lights work again, but has been fine for over 3½ years since the hack and it had clearly got wet before I bought the car so over 4½ years ago. Perhaps the pervious owner and I were very lucky. If you want to save it, got it out of the car, open it up and make sure all water is absorbed that you can and place in a warm dry place (airing cupboard if you have one) for several days to dry properly. (If by any remote chance you have access to a vacuum chamber put it in there and the water will sublimate and it will be 100% dry - I used to work in recovery and decontamination of flood/fire affected electronics) Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted January 14, 2023 Report Share Posted January 14, 2023 Sealed container like tupperware box with silica gel or a cloth bag of rice. Quote Link to comment Share on other sites More sharing options...
phazed Posted January 14, 2023 Report Share Posted January 14, 2023 I have a 3.2 987 sitting on the drive. Previous owner had exactly the same trouble. Local specialist garage actually put on his previous invoices that they had cleared out the drains. I have never seen so many leaves and gunk in there so patently not! Dried out the existing unit which worked for a couple of hours operating roof et cetera. It gave up so I have bought a new one. I haven’t fitted it yet as the weather has been absolute rubbish so car has stayed under its cover. Maybe someone can tell me if the new module needs to be programmed in or is just a plug and play? Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 14, 2023 Report Share Posted January 14, 2023 5 minutes ago, phazed said: I have a 3.2 987 sitting on the drive. Previous owner had exactly the same trouble. Local specialist garage actually put on his previous invoices that they had cleared out the drains. I have never seen so many leaves and gunk in there so patently not! Dried out the existing unit which worked for a couple of hours operating roof et cetera. It gave up so I have bought a new one. I haven’t fitted it yet as the weather has been absolute rubbish so car has stayed under its cover. Maybe someone can tell me if the new module needs to be programmed in or is just a plug and play? It’ll need coding to the car with a PIWIS. Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 14, 2023 Report Share Posted January 14, 2023 1 hour ago, capeboy said: Despite clearing all the drain holes a few weeks ago, the rear spoiler started playing up, then the rear brake light etc etc....on inspection, the passenger footwell and under the passenger seat were waterlogged. ECU module completely soaked in water... I have removed the seat and am busy drying the carpets. ECU part number 977.618.260.08 Is it worth drying the ECU and then trying to plug it in again? Or is a new one the only option? If so, has anyone used this service?: https://www.mdbdiagnostics.co.uk/product-page/porsche-987-rear-body-control-module-99761826008-coded-to-your-vehicle Any other advice gratefully received... Thanks. By all means try drying it out and cleaning it up (contact cleaner). You may get lucky or you may need a new one , completely dependent on amount of water ingress and how corroded it is. Quote Link to comment Share on other sites More sharing options...
capeboy Posted January 14, 2023 Author Report Share Posted January 14, 2023 2 hours ago, capeboy said: Despite clearing all the drain holes a few weeks ago, the rear spoiler started playing up, then the rear brake light etc etc....on inspection, the passenger footwell and under the passenger seat were waterlogged. ECU module completely soaked in water... I have removed the seat and am busy drying the carpets. ECU part number 977.618.260.08 Is it worth drying the ECU and then trying to plug it in again? Or is a new one the only option? If so, has anyone used this service?: https://www.mdbdiagnostics.co.uk/product-page/porsche-987-rear-body-control-module-99761826008-coded-to-your-vehicle Any other advice gratefully received... Thanks. Anyone aware of this company....MDBDIAGNOSTICS? They claim to send out a fully coded ECU... Quote Link to comment Share on other sites More sharing options...
The Caped Crusader Posted January 14, 2023 Report Share Posted January 14, 2023 I'm sure the coding just involves telling the ECU what type of Porsche it's being fitted to - targa, coupe, Boxster etc. @Richard Hamilton is the resident guru here and could likely confirm this. There's a list of people on the forum who have PIWIS who could code a new one for you, if need be. Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 14, 2023 Report Share Posted January 14, 2023 Pretty much https://f01.justanswer.com/ebrock63/59c94364-53aa-415d-8240-3b141864a53e_578919_Removing_and_installing_control_...(Body_Control_Module).pdf Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted January 14, 2023 Report Share Posted January 14, 2023 So MBD want £375, or someone else wants £?200 (I can't quickly see the OPC price) plus coding fee, for which a few members here may ask a very reasonable price . There are also used ones from Steve Strange but who knows if they also had water damage. Quote Link to comment Share on other sites More sharing options...
phazed Posted January 14, 2023 Report Share Posted January 14, 2023 Paid £330 from main dealer with a bit of discount. Quote Link to comment Share on other sites More sharing options...
phazed Posted January 14, 2023 Report Share Posted January 14, 2023 Just asking, is there anyone in the Surrey area or thereabouts that can program these units in? Quote Link to comment Share on other sites More sharing options...
Richard Hamilton Posted January 14, 2023 Report Share Posted January 14, 2023 As has been said, on the 987 the Rear BCM only needs coding as per iborgUK's PDF. The PAS module (containg the key remote and immobiliser data) is on the 'transmission tunnel' so above the water level. Anyone with a PIWIS could code it - even a used one from another 987 or 997 could be re-coded with the options to suit your car. 1 Quote Link to comment Share on other sites More sharing options...
capeboy Posted January 16, 2023 Author Report Share Posted January 16, 2023 On 1/14/2023 at 11:45 AM, Menoporsche said: So MBD want £375, or someone else wants £?200 (I can't quickly see the OPC price) plus coding fee, for which a few members here may ask a very reasonable price . There are also used ones from Steve Strange but who knows if they also had water damage. £200? where's that, @Menoporsche? Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted January 16, 2023 Report Share Posted January 16, 2023 Sorry, just google results for the part number. Could be a new part, a used part, could be a dodgy ebay ad who never supplies it! Quote Link to comment Share on other sites More sharing options...
capeboy Posted January 21, 2023 Author Report Share Posted January 21, 2023 Update. Despite several days of drying out the old board, it wouldn't work on re-installation. So bought a new (pre-programmed) one from MBD. Excellent service from them. All seems fine now (spoiler and rear brake lights). Haven't tested the soft top as the hard top is currently in place....a mate cleared the error messages. Still struggling to dry the foam under the passenger carpets though....de-humidifier in place for a few days now....ANY IDEAS please? And have re-checked all the drain holes again......fingers crossed! Quote Link to comment Share on other sites More sharing options...
Boxob Posted January 22, 2023 Report Share Posted January 22, 2023 58 minutes ago, capeboy said: Still struggling to dry the foam under the passenger carpets though....de-humidifier in place for a few days now....ANY IDEAS please? With the seat out slide newspapers and / or towels under the carpet then stand on the carpet to squeeze out the water from the foam. Keep repeating until as much water as possible is removed. Leave dry newspapers under the carpet. It will still soak up more water. Change it when it does. Quote Link to comment Share on other sites More sharing options...
capeboy Posted January 22, 2023 Author Report Share Posted January 22, 2023 Thanks. Have done that with old towels but the foam under the carpet still feels damp...and in this freezing weather, the dehumidifier seems to be less effective than normal...are there instructions for removing the floor carpet???? Quote Link to comment Share on other sites More sharing options...
Bradders59 Posted January 22, 2023 Report Share Posted January 22, 2023 Removing the carpets to fully dry them is the only 100% effective way of doing it in my opinion/ experience. Quote Link to comment Share on other sites More sharing options...
phazed Posted January 22, 2023 Report Share Posted January 22, 2023 I removed the seat, pulled the carpet up from the centre and wedged various bits of wood needed to prise it away from the floor and left a small dehumidifier in for about a week. It totally cleared water and any dampness, but the weather was better when I did this. My experience is that the small dehumidifiers ice up in this weather. Quote Link to comment Share on other sites More sharing options...
89rallye Posted January 22, 2023 Report Share Posted January 22, 2023 I had a leak in my 05 recently passenger side, caught it before it done any damage, my drain holes were all clear and had done the door membrane last year, my problem was when the ball joints broke on the roof mechanism and the rod had pushed the rubber well inside the metal bodywork so the water wasn't dripping into the well but into the car Quote Link to comment Share on other sites More sharing options...
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