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Matt
Matt, Mechanical Engineer
Category: Renault
Satisfied Customers: 22005
Experience:  BEng hons Mech engineering, in auto industry 22 years
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My scenic takes ages to start when cold when its warmed its ok I have bee told it is the

Customer Question

my scenic takes ages to start when cold
when its warmed its ok I have bee told it is the ecu unit
Submitted: 1 year ago.
Category: Renault
Expert:  Matt replied 1 year ago.
Hello I'm assuming that this is the petrol engine and it could be incorrect fuelling due to a faulty water temp sensor. If this is the problem then the ECU will never add the 'cold start' extra fuel required if the car starts OK when warm then I 'd look into changing the sensor.
Expert:  Matt replied 1 year ago.
Hi
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