C4 And Ds4 Bonnet Corrosion And Recall

[paul.h]

There is a recall on C4, DS4 bonnets since it is possible the bonnet can corrode where the hook joins the bonnet and if not treated could result in the bonnet flying open. I have copied this from the Common Problems topic:

10. Corrosion of the bonnet.

This has been reported by scimitargtc on his 2012 C4. Corrosion of the aluminium bonnet possibly due to a steel frame. The dealer has seen a few of these and there are many cases on the internet. One to check for the C5 which also has an aluminium bonnet. http://www.citroen-o...ity-2012-model/

 

After 3 years 9 months a 1cm long paint bubble appeared on our 2011 C4 bonnet at the front at the V. The defect warranty for paint is 3 years but we still reported it to our dealer. The bonnet frame is not mild steel since a magnet does not stick to it. Our dealer put in a claim to Citroen and fortunately Citroen paid for a new bonnet to be fitted at a cost to Citroen of around £900. We were told only repairing the paint would not last since the problem is a defect with the metal.

 

There is a recall on the bonnets which affected our 2015 C4 so may apply to all of the 2010 on model C4. We found out when it went for its second annual service at the Citroen dealer, they had not contacted us. First the bonnet is inspected in the area of the hook and then the bonnet is either replaced or if not corroded it involves putting grease filled stickers around the hook on the bonnet where it joins the bonnet. This is to prevent corrosion if the paintwork splits. The dealer said about 3% of bonnets recalled have been replaced so it is hoped the stickers will prevent too many needing to be replaced. At a guess, if not done and it corrodes, the hook could come off and the bonnet fly open. A search came up with this from the driver and vehicle standards agency https://www.dft.gov....ank&tx=0.684669