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Have you ever had a 4200 heater core issue & at what mileage

  • YES, 20K or less

    Votes: 0 0.0%
  • YES, 20K-40K

    Votes: 12 21.4%
  • YES, 40K-60K

    Votes: 6 10.7%
  • YES, 60K-80K

    Votes: 3 5.4%
  • YES, 80K-100K+

    Votes: 2 3.6%
  • NO, 20K or less

    Votes: 7 12.5%
  • NO, 20K-40K

    Votes: 12 21.4%
  • NO, 40K-60K

    Votes: 6 10.7%
  • NO, 60K-80K

    Votes: 5 8.9%
  • NO, 80K-100K+

    Votes: 3 5.4%

  • Total voters
    56
1 - 20 of 46 Posts

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Premium Member
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Discussion Starter #1
Are the heater cores on these models the Achilles Heel as much as Craig Waterman suggests on his site? Craig suggests that EVERY Coupe, Spyder & GS will eventually have this issue. What have been the experiences of owners & pro's here regarding leaking heater cores & subsequent replacements on these models? I already agree about the extensive R&R process if defective. Early 2002s had the same issue.
KTBD
 

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Super Moderator
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3,299 Posts
Every car will need an engine rebuild too. Eventually. Just like everything else.
My twelve year old, 45,000 mile car has the original unit and it's not leaking.
 

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Performance Specialist
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4,488 Posts
The heater core is known to to be an issue with this vehicle -- we are aware of customers who have had heater core issues, but there are others (including one of our employee's 2005 Gransport) that hasn't. So, it's certainly possible you may eventually have this issue but like anything, just be aware of it in the event you start to see signs.

Enjoy the ride!
 

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Premium Member
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868 Posts
Discussion Starter #4
I sure do wish there could be a poll:

1) Which car do/did you have: Spyder, 6MT, CC, GS
2) Heater Core issue with my coupe (whether I still own it or not): YES or NO.

Then I could tally up a crude likelihood (being the data geek that I am).

I suppose that's a bridge too far.

Thanks for chiming in,
KTBD
 

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671 Posts
There is definitely an issue with the heater core. I have never had a car that would start leaking at 37k miles. No matter how old. The heater core is one of the poor quality components in these cars. There is a long list of those. Much longer than on a typical car. I don't mind most that much but this one I do. Totally unnecessary, massive undertaking to replace it. Oh well...nobody said it was easy....
 

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Super Moderator
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3,299 Posts
I sure do wish there could be a poll:

1) Which car do/did you have: Spyder, 6MT, CC, GS
2) Heater Core issue with my coupe (whether I still own it or not): YES or NO.

Then I could tally up a crude likelihood (being the data geek that I am).

I suppose that's a bridge too far.

Thanks for chiming in,
KTBD
A poll can be added to this thread.
 

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I had to 2006 cars. One was a Grasport and the other a 6spd manual. Owned for about 3 years each and no heater core issues. Its like anything else, it could leak 2 months after buying it or it could last till you sell it. I wouldnt let it stop me. Just find a nice car and buy it
 

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Performance Specialist
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4,488 Posts
We'd have to say, it's as Lorenz put it... it may happen or not. Our GranSport has not had the issue but we've had many customers that have had it happen. Seems to be a more common issue so you're best to plan for it happening and hope that it doesn't!

Good luck!
 

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Premium Member
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868 Posts
Discussion Starter #13
Query Wording

Although the results will almost certainly be skewed negatively.....

C
Understood. If I knew how many such vehicles were represented on the forum, that would establish a base. I have tried to word a poll query (work in progress) to take this issue into account.

KTBD
 

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New Poll!
 

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671 Posts
maybe we add to that:
window regulators
window micro switches
convertible top
-electrical issues
-stretched elastic
-holes worn in the top sides
climate control unit
speakers
interior
-stickies
-cracked leather seats
- wearing top door cards by simply holding your arm on them.
-leather separating from airbags on the steering wheel and passenger side dash
-Floor mats falling apart
-door rubber seals tearing apart
suspension
-control arm bushings wearing prematurely
-ball joint dust covers disintegration.
This is all before the car hits 40k miles.
Fortunately most of it was taken care of under warranty. I wonder why FCA is doing so bad financially? ....;-)
By comparison my A4 avant is nearing 140K miles and it still looks new- the interior still looks and smells new. I had none of the issues above (other than engine rebuild under warranty due to excessive oil consumption haha)
My a6 avant before that hit 170k miles without even light bulb blown or engine rebuild (I did change transmission at 140k-because my mechanic screwed up the service) until somebody totalled it parked on the street .
 

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121 Posts
Hey Jacek, take it easy man, you did not buy a Maserati for the build quality...I mean it's not that bad but it will never live up to the German made cars.


George (stable below from oldest to newest)


'79 911 SC Targa Euro model - running fine
Audi Coupe GT 1986 - needs new brake lines due to salt corrosion in Canada otherwise running fine
Audi 90Q20V sedan 1990 early built - running fine
Jeep Grand Cherokee 1996 with 380,000 kms - running fine
Maserati GT 6 spd 2003 and 50,000 kms (31,000 miles) - yes, the heater is shot and I did the bypass as per Dave's instructions; running A OK :)
 

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No worries- I got what I paid for. Love the car. But, we must acknowledge that very few people will put up with that. It also hurts the company bottom line....
 

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I am the fourth owner of a 2006 GranSport with about 75,000 miles on the odometer. There was no record of the heater core replacement however I do not have any records before 2010 when the car was probably leased by the first owner. I prepared a little "Emergency Core Bypass Kit" with clamps, hose, tools, etc. and placed it in a big ZipLock bag hidden in the Spare Tire well. I am hoping that having the bypass kit ready will bring me good luck and I will never need it....kinda like insurance.
 

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There is definitely an issue with the heater core. I have never had a car that would start leaking at 37k miles. No matter how old. The heater core is one of the poor quality components in these cars. There is a long list of those. Much longer than on a typical car. I don't mind most that much but this one I do. Totally unnecessary, massive undertaking to replace it. Oh well...nobody said it was easy....
You have never had a car... ?

For what it's worth, my 1980 Mercury Capri got a rotten heater core; it was 11 years old at the time and had about 35K miles. But I think it was much easier to replace than on a Maserati 4200!
 
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