Heater Not Hot - Seat Alhambra 1.9 TDi

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Wed 9 May 2007 12:17
Heater Not Hot - Seat Alhambra 1.9 TDi - bertie
Hello,

firstly, thank you to all that responded to my earlier enquiry.

While l'm trying to identify the cause of the problem with the limp mode, there is another nigly issue that l would value peoples opinion on.

The vehicle in question is a 2001 Y registered Seat Alhambra 1.9 TDi, S spec, AUY engine, with 130,000 miles on the clock, with a full service history.

Since owning this car the internal heater just hasn't produced much heat. Not so much a problem this time of year, but in the middle of winter it's a bit parky!

The heater is the manual type, not the electronic climatronic version.

The mechanics of the heater have been checked out, the dials are attached to their respective leads etc & the thermostat has been replaced. This has not made any difference.

l have heard that there is a secondary auxilary heater, in front of the near side rear wheel, that uses glow plugs to ignite diesel & if this has not fired several times (sooted up?)it goes into "lock down"

l have had the vehicle on the VAG diagnostics & all faults cleared associated with this, though again, no change.

What should l do next?

{Car details added to subject header as per one of the sticky requests! DD}
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Wed 9 May 2007 14:28
Heater Not Hot - Seat Alhambra 1.9 TDi - Altea Ego
The aux heater (if fitted) is only a boost at start up. It only works if the ambient temp is below 5c, and turns off when the engine has reached 2/3rds operating temperature.

what does your engine temperature gauge read when its fully warm?
------------------------------
TourVanMan TM < Ex RF >
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Wed 9 May 2007 17:08
Heater Not Hot - Seat Alhambra 1.9 TDi - bertie
Hello TVM,

the temperature gauge sits at 90C, smack in the middle.

However, the needle still occationally goes up & down (though never past 90C)& when l had the heater looked at, the garage stated that now the thermostat has been replaced the only other item to replace was the coolant temperature sensor.
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Wed 9 May 2007 19:14
Heater Not Hot - Seat Alhambra 1.9 TDi - the_bandit
99% of all booster heater problems are the result of a faulty glow plug. You buy this item from the dealer for about £40 and it should take no more than 1hr for you to replace it. The plug is manufactured by BERU.

If the heater logs five failures then it will remain in a shutdown state until the faults are cleared and the appropriate conditions allow it to restart. These tend to be outside ambient temps of about 10DegC and a coolant temperature of less than 75DegC.



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Wed 9 May 2007 20:28
Heater Not Hot - Seat Alhambra 1.9 TDi - bertie
Smokey,

thanks for the response.

l'll give that a go.
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