MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: anduhchunkymonkey on November 03, 2014, 06:16:55 pm
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Hello!
Had an MOT Today and while it was in I asked them to do a compression test as I've been losing coolant :scared: No external leaks where found so it must be internal so either EGR Cooler or :scared: cracked head :scared:
The guy told me that it was more likely to be the EGR cooler as it's more common especially as I have a revision C Head, He then told me that the only place he could get a replacement cooler from was direct from VW who charge £270 :sick: Also that it'd be 4 hours labour to fit and I risk paying all the money without knowing that it is the EGR cooler in the first place :confused:
1st question is:
Coolant leaking from max to min roughly every 3 weeks, no water in the oil but my emissions where rather high ( he had to do the test 3 times for it to pass) Car is an 06 tdi 140 with 107000 miles on the clock, could it be anything else?
2nd question:
Is there anyway of testing it without removing it?
I have had a look on the forum about EGR's and a lot of people simply get rid of them and the cooler, this seems to be my cheapest option and the best for my engine according to what a lot of people say on here but I have some questions :evilgrin:
Are there any known issues after removing the EGR?
Will I notice any difference?
I told the guy that was doing my MOT about this and I was told that I'd need a complete remap, My car has already been mapped by nicky to 180 so do I still need another remap or can I get the someone who can code to do it?
Last question (or 2)!
If I need a remap how muc would R tech charge or is there a cheaper alternative?
Sorry for the amount of questions but am in need of Help!
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I had my egr cooler took out last week but still got the original egr in but it's been mapped out as with the fault codes.Car runs a lot better now
If you need another cooler you can buy mine
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I'm thinking I want to remove it as well as the EGR Rather than replace it to be honest, If you don't minde me asking, how much would you be looking for it and also how much was your remap and where did you get it done?
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be £40 for the cooler posted to you,if nick your map he will code the egr out for you
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Thanks for the offer and the replies mate but I think I just want to get rid of the bloody thing! Sounds like it's the right thing to do! Have you noticed any drawbacks like the engine taking longer to warm up or fuel consumption?
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Not been far as yet to try it but don't think it will make much difference
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Also their is a guide on here how to remove the cooler and egr
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I've seen that and it makes it look quite easy! Did you do it yourself?
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http://www.mk5golfgti.co.uk/forum/index.php/topic,72241.0.html
I was going to do it but with 4 kids at home i don't get the time but my good mate DDm who is on here did it for me
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I'm having exactly the same problem, losing coolant slowly and no apparent leaks, no mixing of coolant and oil (Only started a couple of months ago). My emissions though were good. I also have a revision C head and hope its not that. I'm thinking of removing the EGR cooler but mechanics are not my strong point.
Paul
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Thanks for the offer and the replies mate but I think I just want to get rid of the bloody thing! Sounds like it's the right thing to do! Have you noticed any drawbacks like the engine taking longer to warm up or fuel consumption?
There are no drawbacks to removing the egr cooler as long as you remove or blank the egr at the same time.
Once removed you won't really see any difference once removed.
Its just one less thing to go wrong.
Once removed you will get an emissions fault causing the ECU light to come on.
Its fine to drive in this state, but most people get the egr mapped out which stops the ECU trying to operate the egr valve.
Jas
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Thanks Jason you answered a question which I forgot to add! Was wondering how long I could leave the car, without a map, after removing the EGR! Looks like I'm getting my hands dirty this weekend! Roughly how much should it cost to get the EGR Mapped out?
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I think its around the £80 mark on its own. I haven't had mine mapped out yet.
Read the guide fully and make sure you have everything you need before starting, including in some hose to bridge the small coolant hoses once the cooler is removed.
I think its 7mm internal diameter. I got some off eBay.
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If possible please could you send me the ebay link or confirm the length and diameter, I can't find the header tank hose, that was recommended in the write up anywhere!
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Talk about being slow! Just realised it's your write up I've been studying all afternoon :rolleye: Must be a monday! Fantastic write up mate! You'll be helping me out loads this weekend! Thanks for the write up and the replies! Do you have a build thread?
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Don't have a build thread on here, keep meaning to do one.
The hose you need is 7mm internal diameter, suitable for coolant.
I used this:
http://pages.ebay.com/link/?nav=item.view&id=221311413819&alt=web
I'll update the guide when I get chance.
Jas
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My GT Sport TDi doing the same thing. 140bhp BKD engine loosing water somewhere. Going to whip the undertray off if cant find nothing then ill buy a EGR delete and the relevant piping to remove the cooler.
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Mine was the waterpump.
Easiest way to see if its leaking is honestly just to whip the tray off and start it up, put a breaker bar or jack handle jammed between the seat and the accelerator so it revs around 2500 and look underneath. Bottom of the radiaters a weak point, waterpump and any of the hoses to and from the EGR cooler, if no drips then its either the head or the internals of the EGR cooler have broken down and allowing water into the engine where its being burnt off, you will know if its the EGR cooler as when you start it from cold it will either stall or run like a sack of sh*t for 30 seconds while it burns the coolant off thats leaked on top of the pistons while its been sat from the previous time it was used :)
f*cked cooler -
f*cked head -