What engine is it?

Could be coolant temp sensor

deiesel , could be glow plugs

Sarah

 

What engine is it?

Might help [D]

 

its just the 1.6se

 

Would be interesing to find out what causes this as its started happening to my mates 1.6.

Pretty annoying being stuck in a car park when the car just turns over but doesnt catch.

 

Had this problem on my 1.8T. replaced a number of items but eventually found the root cause. in my case. it turned out to be the fusebox that sits ontop of the battery. Check it for any signs of melting around the "dog bone" fuses. mine had this, and it's where there's a poor connection between the common live rail, and the fuses themselves. the fuse then pulls too much current as the connection is poor and melts the plastic. the fact it has melted the plastic shows the poor connection. in the days leading up to this discovery, i also replaced the MAF sensor as the idle was erratic, cleaned the throttle body, swapped the coolant temp sensor, and the fuel pump relay, as i could hear it switching/shorting, under the dash. none of the above contributed to the soving the poor starting. the engine turned over really well, but wouldn't start. Check your battery fusebox- it may well be that. check all the nuts are tight on it, and that the battery terminals are tight. it may be worth removing the fusebox entirely, strip it, and clean the metalwork with emery paper to ensure a really good connection is made. hope this helps.

 

Could be coilpacks too mate

 

Hi,

First post but thought I would try to help out anyway...

I've got a petrol 2l with the same issue. Turns over fine but stuggles to start unless I put my foot on the accelerator.

I've just changed the temp sensor (2 second job! just wish I bought it from vagparts instead of VW!) so I'll let you know how it goes.

 

let me know asap

 

Well the temp sensor hasn't cleared my issue

Wondering how much it would cost to get VAGcom run over it rather than spending the £100 on a new MAF and find out it's not that.

 

Could be coilpacks too mate

theres only one single large one on the side of the engine on the 1.6's

cold decreases resistance in wires so connections should be ok, but electrical componants dont like it much

if you have the tools, could take the plugs out and make sure they are wet so you know if fuel is coming through

 

my 2.0l petrol 51 plate bora sport has same prob when cild starting in am

 

Wondering how much it would cost to get VAGcom run over it rather than spending the £100 on a new MAF and find out it's not that.

Have a look in the vagcom forum for a member near you. Some will do it FOC, some will do it for a few beer tokens. Shouldn't cost you much in any event.

 

if no fuel getting to the plugs, could be the fusebox sat ontop of the battery???? was in my case. as i mentioned earlier in this thread.

 

Any solution mate?

 

nope no solution as of yet

 

OOO I didn't notice to topic I posted the same sort of problem for my 1.6 too!

I'll have a look at the fuses ontop of the battery tommorow as I know my luck it will play at a very inconvinient time for me lol.

Never had a problem starting the 1.6 always fires first time every time till today, just makes the usual noise but doesn't fire into life.

 

How about if you give it a bit of the 'loud' pedal when turning the car over? Does that help?

 

If you give it some gas as I figured out on the third go it seems to spring to life. All a bit odd for a car thats always fired first go every go though, just hope it isn;t a sign of something else failing.

 

Any luck yet?

 

Well after changing the temperature sensor I took it to a local chap (Kalu on here infact) who ran the VAGCOM bits over it. Cleared the errors and (i think) reset the ECU...

So far, fingers crossed all resolved!

 

Ok, the temperature sensor replacement and ECU error wipe solved the issue for a while, but the problem is back again now!

I think I'm going to have to get it run past VAGcom again to get the errors.

 

Had the same problem with my 1.6 just on and off now and again. Very odd if you ask me. Good luck

 

I'm wondering if it's my MAF, due to the fact that I have to use the accelerator to get it going...guess I'll have to find a friendly VAGCOM user....

 

A litlte more research yields these steps:

1 - Clean current MAF with brake cleaner - http://uk-mkivs.net/forums/p/18018/1019635.aspx

2 - Fuel filter O-rings - http://uk-mkivs.net/forums/t/125158.aspx?PageIndex=1

3- Replace MAF

 

A litlte more research yields these steps:

1 - Clean current MAF with brake cleaner - http://uk-mkivs.net/forums/p/18018/1019635.aspx

2 - Fuel filter O-rings - http://uk-mkivs.net/forums/t/125158.aspx?PageIndex=1

3- Replace MAF

Stage 1 complete followed by an ECU reset. Will see how it goes and if it comes back...