Modeo Heat Exchanger Fail

GT2 · 05-03-2014, 10:43 AM

Had the dreaded heat exchanger fail last Friday however it isn't a Falcon.
It failed in a 2011 Modeo TDI. In the diesel Modeo, the heat exchanger is located between the block and the radiator.
The car has 38K and was 4 days out of warranty.
To there credit, Ford customer service have taken on the case.

bangm001 · 05-03-2014, 01:59 PM

Had a trans cooler let go on my wifes Astra twin top just out of warranty (few months out) too, they didnt cover it.. Same rubbish hey.

Mr Hardware · 05-03-2014, 03:02 PM

Do you mean Mondeo? or Rodeo?

GT2 · 05-03-2014, 04:14 PM

Mondeo,

Road_Warrior · 05-03-2014, 04:22 PM

Interesting.

I wonder if Ford did a bulk buy on the same rubbish heat exchangers for a whole bunch of different models?

johnydep · 05-03-2014, 04:29 PM

Quote:

Originally Posted by Road_Warrior

Interesting.

I wonder if Ford did a bulk buy on the same rubbish heat exchangers for a whole bunch of different models?

Why have Ford had this problem since the EF model? The AU went through several radiator cooler redesigns & still couldn't get rid of the problem. Ford then went to an external heat exchanger, telling all that the problem was fix. Nope, still happening.

I reckon it's the coolant. Probably becomes acidic as it ages.

Road_Warrior · 05-03-2014, 04:31 PM

Quote:

Originally Posted by johnydep

I reckon it's the coolant. Probably becomes acidic as it ages.

That, and I'm pretty sure these coolers/heat exchangers have glue involved in their construction as opposed to soldering/welding.

GT2 · 05-03-2014, 04:56 PM

[QUOTE=Road_Warrior;5038277]Interesting.

I wonder if Ford did a bulk buy on the same rubbish heat exchangers for a whole bunch of different models?[/

The Mondeo cooler looks nothing like the Falcon one.

GT2 · 05-03-2014, 04:58 PM

Quote:

Originally Posted by johnydep

Why have Ford had this problem since the EF model? The AU went through several radiator cooler redesigns & still couldn't get rid of the problem. Ford then went to an external heat exchanger, telling all that the problem was fix. Nope, still happening.

I reckon it's the coolant. Probably becomes acidic as it ages.

Good point. I wonder if using that waterless coolant would overcome the problem?

GREGL · 05-03-2014, 09:15 PM

Tell me if I'm wrong here but why would it be a coolant issue , when hundreds of thousands of cars use basically the same formula . Furthermore how does a car that has done 38k and assuming it has been serviced as per log book have a chance of coolant ageing ?
Wake up and stop putting up with crap its that simple .

GREGL · 05-03-2014, 09:27 PM

Quote:

Originally Posted by GT2

Good point. I wonder if using that waterless coolant would overcome the problem?

Why when you buy a new or near new car should you even have to consider overcoming a problem ? The reality is you shouldn't have to unless the standard of world class car has dropped . It is no wonder ford have problems and until they get their act together and FIX these dramas there life as an importer won't last long either .

kempy311 · 06-03-2014, 01:06 AM

Quote:

Originally Posted by johnydep

Why have Ford had this problem since the EF model? The AU went through several radiator cooler redesigns & still couldn't get rid of the problem. Ford then went to an external heat exchanger, telling all that the problem was fix. Nope, still happening.

I reckon it's the coolant. Probably becomes acidic as it ages.

But many heater exchanges are not rotting out they are cracking.

Trump · 06-03-2014, 07:13 AM

Glue + high coolant temps by design + coolant turning to acid = death for the heat exchanger/cooler.

simon varley · 06-03-2014, 09:19 AM

do you know how it failed? was there an external coolant leak, or was it internal and mixed with the oil?

johnydep · 06-03-2014, 11:02 AM

Quote:

Originally Posted by GREGL

Tell me if I'm wrong here but why would it be a coolant issue , when hundreds of thousands of cars use basically the same formula . Furthermore how does a car that has done 38k and assuming it has been serviced as per log book have a chance of coolant ageing ?
Wake up and stop putting up with crap its that simple .

Coolant cause is only an educated 'guess'.

If the problem is a heat exchanger fault - then why has it only occurred on Ford items in such high numbers, and with different parts manufacturers?

That's what I've been asking myself for the past 15 years. We've changed quite a few. Even had an AU111 on it's third radiator & second trans - all changed by Ford, first under warranty, second partial payment, third full customer payment. Each radiator was meant to have been "updated".

Maybe it's electrolysis, or a crack. But then why does it seem that the majority are vehicles that have not had a coolant change?

Like I said just guessing.

johnydep · 06-03-2014, 11:04 AM

Quote:

Originally Posted by kempy311

But many heater exchanges are not rotting out they are cracking.

See above.

Plus; unless using high magnification, corrosion of metal could start a crack from weakness and fatigue.

GT2 · 07-03-2014, 11:53 AM

Ford customer care were on to this rather quickly. Service and communication was very good as was the dealer. They have agreed to cover the cost.

GT2 · 11-11-2014, 02:59 PM

6 month/5000km later and the exact same thing has reoccurred.

LG17 · 11-11-2014, 03:07 PM

Quote:

Originally Posted by GT2

Had the dreaded heat exchanger fail last Friday however it isn't a Falcon.
It failed in a 2011 Modeo TDI. In the diesel Modeo, the heat exchanger is located between the block and the radiator.
The car has 38K and was 4 days out of warranty.
To there credit, Ford customer service have taken on the case.

Our MA did the same thing a couple of years ago. We were out of warranty too but the car had only done 20000km. They huffed and puffed but eventually fixed it for us.

XR Martin · 11-11-2014, 03:23 PM

Quote:

Originally Posted by GT2

6 month/5000km later and the exact same thing has reoccurred.

Stray current in the coolant and earthing against the block, will eat through aluminium in no time.

mik · 11-11-2014, 03:23 PM

i wonder if any one has ever tested the quality of the coolant/inhibitor that goes into these these things, aluminum is a very **** weak metal when it comes to with standing corrosion/electrolysis attack.

mighty-mon · 11-11-2014, 11:11 PM

Hmmm ....i think our 2010 MB XR5 might have this problem as im sure we may be loosing coolant ever so slightly at the moment. Will have to keep a close eye on it from here on in.

mik · 12-11-2014, 11:00 AM

Quote:

Originally Posted by GREGL

Tell me if I'm wrong here but why would it be a coolant issue , when hundreds of thousands of cars use basically the same formula . Furthermore how does a car that has done 38k and assuming it has been serviced as per log book have a chance of coolant ageing ?
Wake up and stop putting up with crap its that simple .

Maybe that's something else to contemplate , despite dealer or workshop x doing the service what are they putting in , and what is going in at the factory?

i pulled the cooler out of the bottom tank of my AU radiator when the core failed , and the cooler actually looked decent Qaulity brass, not sure what they use these days.

Deo · 12-11-2014, 01:32 PM

Quote:

Originally Posted by GT2

6 month/5000km later and the exact same thing has reoccurred.

Very interested to hear if they pay for it given the original repair was ex gratia.

They damn well should particularly given Martin's suggestion that the root cause wasn't fixed.

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