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C4 - DS4 Owners :: Forums :: C4 2011 (B7) DS4 and DS4 CROSSBACK :: Problems and issues

Non starter after thermostat change

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gaz4218   
Sat Feb 09 2019, 02:08pm
Member No: #45921
Joined: Aug 20 2016
Location: Cannock
Hi,

Just changed the thermostat on my 2012 C4 2.0HDi Exclusive, now the car will not start, error messages say engine electrical fault & engine fault and most of the lights come on on the dashboard. Has anyone else had this problem?

When changing the thermostat I left the battery off the car overnight if that makes any difference. Also nothing works in the car, electric windows etc. Tried a BSI reset and nothing, and my ODB2 port reader will not connect the ECU so I can read the fault codes properly.

Any help would be much appreciated.
BigJohnD   
Sat Feb 09 2019, 02:23pm

Member No: #82
Joined: Jan 22 2007
Location: Hoylake
I suggest you remove the clamps from the battery terminals and thoroughly clean the terminals, both parts, both +ve and -ve. Smear them with Vaseline and make sure everything is re-clamped tightly.
 

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