Question about 2007 Volkswagen Caddy 1.9

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Volkswagen caddy van wont start when cold

Wont start from cold has had new battery

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Posted on Jan 02, 2017

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SOURCE: timing belt settings on seat inca van

If your caddy is the 1.9 diesel
The mark you are looking for is on the flywheel. Remove the plastic plug in top of the bell housing to reveal a small arrow. Rotate engine until the flywheel TDC mark lines up with this arrow
John

Posted on Feb 17, 2009

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SOURCE: vw caddy van 2004 onwards hot starting problem

i have a 05 caddy van there is traces of oil in coolant tank.i just got new turbo fitted as my other blew.could this have happened when my turbo went?

Posted on Mar 21, 2010

SOURCE: 2004 vw caddy van. starts instantly cold. but

From what you say I would check the MAF and for any vacuum leak. Here is my reasoning. When cold the ECU sets long injection times to warm up and if the vacuum is low your fuel pressure relief valve will also be at higher pressure (reduced vacuum will not relieve the fuel pressure valve as it would normally). The result is the the extra fuel injected is balanced by the extra air due to the leak and the car starts easily. However when the engine is hot the ECU reduces injection times and the fuel mix is leaner. If the MAF is unable to read the mass of air flowing through it correctly it may set the injection to being too lean to run at idle and at restart. If there is a vacuum leak the additional air causes the engine to cut out and will like the MAF makes it difficult to restart. A quick way to check the diagnosis is, when the car next cuts out when hot, disconnect the coolant sensor before starting. This will fool the ECU into thinking the engine is cold and reset longer injection times and the car should restart that little bit easier. Reconnect the coolant sensor once the engine is running. Now switch off and try to restart with the MAF disconnected. the engine should restart if the MAF is at fault. Check that the MAF is clean and that its electrical connection is good. THe MAF can be cleaned by spraying it liberally internally with electrical spray cleaner and allowing to air dry before reassembling. Check the vacuum lines and junctions are secure. So what I have described here are two sides to the same coin. If the MAF 'sees' less air than there actually is the ECU will reduce the amount of fuel injected to 'compensate' and in the process makes the error of running the engine too lean. If there is a vacuum leak too much air actually enters the engine for the correct setting of the injectors and again the engine runs too lean. I hope this helps.

Posted on Sep 24, 2011

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