Changing Antifreeze on 1.6 HDI 112bhp engine

[paraman]

Well, now I have the new Haynes Manual for Berlingo/Partner I was able to change the brake fluid and bleed in the right order. I was not expecting left front, right front,left rear and right rear! My Panda was the diagonal LR-RF, RR-LF sequence. Also bled the clutch as I now had a photo of where the bleed valve was. So far so good. Then whip off the under engine guard so it will be quick to drain the oil after a good long run in the future. Someone once said it was possible to reach the drain plug through holes in the engine guard, but not with mine. It needed to come off as the 5+ year old coolant/antifreeze needs changing. Haynes manual and handbook says Glysantin G33. Going on their website I see G33 no longer made and G30 Recommended instead. It's spec shows it is an OAT coolant which is very common. But alas! I can't start draining the old coolant because only pic 19.5b....and the bleed screw (arrowed) on the coolant housing.....was found. There appears to be no cylinder block drain plug fitted, as is possible. But where is the bleed screw on the heater hose union? Even the one I did find was nearly hidden by air ducting and hoses, such is the spaggetti junction under the bonnet these days! So where is screw on
19.5a. It is very hard to work out from the photo where it is supposed to be! Crawled under and looked at bulhead side of engine to no avail.
Has anyone done a coolant change on a 2011 model?

[brajomobil]

3 weeks ago when I approached my 1.6 hdi 90ps 2008g blingo noticed small puddle of water under it.
After 15 min of looking noticed it was leaking on what appears to be drain plug. Pic 19.6.
That is how I learned that my car has water drain plug. O ring was bad and I replaced it with new one.
Before I knew , I changed water fluid old fashioned way, remove hose 

I presume it is the same for your engine. Remove wheel and look between pulley and engine block.
You will see top of plastic drain cap. It has a hole in it and metal retainer. Look closely at pic 19.6
in Haynes.

Best regards,
brajomobil

[paraman]

3 weeks ago when I approached my 1.6 hdi 90ps 2008g blingo noticed small puddle of water under it.
After 15 min of looking noticed it was leaking on what appears to be drain plug. Pic 19.6.
That is how I learned that my car has water drain plug. O ring was bad and I replaced it with new one.
Before I knew , I changed water fluid old fashioned way, remove hose 

I presume it is the same for your engine. Remove wheel and look between pulley and engine block.
You will see top of plastic drain cap. It has a hole in it and metal retainer. Look closely at pic 19.6
in Haynes.

Best regards,
brajomobil

Thanks brajomobil. I have the newer 8 valve engine which may not have it. But I'll take off the wheel and look for it.The Haynes Manual says it is at the back of the engine, which is where I looked. Yours appears to be at the pulley end. How many air bleed screws did you find? 19.5a AND 19.5b?
cheers paraman

[brajomobil]

Only 19.5b

Best regards,
brajomobil