997 corrosion on front bonnet latch. OPC's full of ****

[chrisABP]

Mainly a whinge but also a heads-up for all 997.2 owners with their cars still under the manufacturers 12 year anti corrosion warranty....

After giving my car a wash and vac I noticed what appeared to be rust around the bonnet catch. Sure enough it was and very surprised by it on a 2011 997 with 22,000 miles!

Spoke to my OPC and sent pictures over to them. They 'claim' not to have seen it before but thankfully agreed to rectify it and the car goes in tomorrow. So I think my car must be a random and I'm unlucky.....
Until I look under the bonnets of the next 3 x 997's that we had in our workshop and they were all significantly worse than mine in exactly the same place! Hardly an unusual case as the OPC claimed.... So my 3 customers are now all heading back to their respective OPC's for repair.

Just annoys the hell out of me when lied to and told it's not a usual issue!!!

Here are some pictures of my corrosion so please pop your bonnet and have a look as yours may be the same or worse...

[Trev450]

A common fault unfortunately due to the process of reaction between steel and aluminium. The only long term solution is to isolate the two metals from one another by using a rubber gasket.

Edited by Trev450 on Friday 26th February 10:04

[chrisABP]

Trev450 said:

A common fault unfortunately due to the process of reaction between steel and aluminium.

Yet the OPC claim it wasn't!

I appreciate its a common issue and mine is very small but looking at the other cars they were a lot worse than mine so best to catch early.

[Trev450]

chrisABP said:

Trev450 said:

A common fault unfortunately due to the process of reaction between steel and aluminium.

Yet the OPC claim it wasn't!

I appreciate its a common issue and mine is very small but looking at the other cars they were a lot worse than mine so best to catch early.

You have to love OPC's attempting to dismiss an established chemical process! Definately best to catch as soon as possible as you say.

[kilarney]

On the lotus this is a well known issue between the chassis and suspension mounts. A paint on isolator called duralac is use and painted between the surfaces although it is yellow ! I'm going to check and do mine now.

[Magic919]

I presume it's the catch that's some kind of stainless steel. I expect exposure to damp and some road salt will assist in that case.

[Mousem40]

Got mine repainted by OPC Chiswick no quibbles.

[Cheib]

Picking my 997 up next weekend....will be checking this!

[gsewell]

chrisABP said:

Mainly a whinge but also a heads-up for all 997.2 owners with their cars still under the manufacturers 12 year anti corrosion warranty....

After giving my car a wash and vac I noticed what appeared to be rust around the bonnet catch. Sure enough it was and very surprised by it on a 2011 997 with 22,000 miles!

Spoke to my OPC and sent pictures over to them. They 'claim' not to have seen it before but thankfully agreed to rectify it and the car goes in tomorrow. So I think my car must be a random and I'm unlucky.....
Until I look under the bonnets of the next 3 x 997's that we had in our workshop and they were all significantly worse than mine in exactly the same place! Hardly an unusual case as the OPC claimed.... So my 3 customers are now all heading back to their respective OPC's for repair.

Just annoys the hell out of me when lied to and told it's not a usual issue!!!

Thanks for the heads up. I have just spotted this on my 2011 Cayman. Does the car need to be under the OPC extended warranty - or is the 12 year anti-corrosion a separate one?

Cheers,

Graham

[chrisABP]

gsewell said:

Thanks for the heads up. I have just spotted this on my 2011 Cayman. Does the car need to be under the OPC extended warranty - or is the 12 year anti-corrosion a separate one?

Cheers,

Graham

Hi Graham

Just the usual 12 year anti corrosion warranty.

Amazed at how many cars suffer from it!

[anonymous-user]

Just checked my 2010 997.2 and cannot see any corrosion as shown but while the luggage compartment was open I would check out the tool kit and compressor, pull the compressor out of its location to find the bottom of it all wet and a big puddle of water in the bottom of the boot - what next?

[Trev450]

chrisABP said:

gsewell said:

Thanks for the heads up. I have just spotted this on my 2011 Cayman. Does the car need to be under the OPC extended warranty - or is the 12 year anti-corrosion a separate one?

Cheers,

Graham

Hi Graham

Just the usual 12 year anti corrosion warranty.

Amazed at how many cars suffer from it!

All it requires Porsche to do to prevent it is to insulate the two materials from one another with a rubber gasket but that would be too simple. I guess it's similar to the use of stainless steel for the window regs instead of the crappy mild steel ones that rust and snap.

[finestjammy]

Just spotted the same issue on my 2009 Cayman too. Back to the OPC to fix.

[gsewell]

Once we get the corrosion fixed on our cars, what can we do to prevent it recurring?
If it is an electric issue - and as no official parts exist, I was wondering about putting two layers of insulation tape on the back of the latch or creating a gasket out out something thin like a soft drink bottle. Or will the screws holding the latch in place be cause enough for the corrosion?

[Trev450]

Already made a suggestion in an earlier post.

[kilarney]

gsewell said:

Once we get the corrosion fixed on our cars, what can we do to prevent it recurring?
If it is an electric issue - and as no official parts exist, I was wondering about putting two layers of insulation tape on the back of the latch or creating a gasket out out something thin like a soft drink bottle. Or will the screws holding the latch in place be cause enough for the corrosion?

See my post above about duralac

[cd1957]

Hi all,there was same issue with 996/986 corroding behind the door strikers,the replacement strikers had thin film of plastic added to it.

They will do the same with boot catch I expect.

Chris

[finestjammy]

I asked my local OPC to inspect the bonnet catch and they said it wasn't a warranty issue. Might try anothe OPC.

[harleywilma]

Its so minor, not worth losing any sleep over really.Scrape off the crust, get some touch up paint let it dry then spray some AC50 into the catch,shut the bonnet and forget about it.JOB DONE.

[gsewell]

My local OPC said probably yes a guarantee job, but as I don't have a fully updated service record for the bodywork inspections, then it will be rejected by Reading. Again, as I have not used OPC for servicing, good will is unlikely to be forthcoming from Porsche Customer Services.
I might look at putting a better gasket in place to stop it getting worse as it is just a few very small ripples at the moment.