They both have 6 ribs but one is 1033mm & the other is 1019mm (The larger for a car WITH “electric auxiliary heater” & the other for a fiesta “without an electric auxiliary heater”)

Now I assume that my car does not have an electric auxiliary heater as the heat in the blower vents come from my engine & heater core. So therefore I will need the smaller belt.

Although I’m not 100% as I’ve never encountered an electric auxiliary heater before in my limited experience 

Edited October 26, 20223 yr by alexp999

Contender for 'longest title' award.

Many modern cars have additional flat electric heating elements inside the heater box.  Diesels in particular but some small petrols do also. 

It allows you to have instant heat in the cabin on a cold morning rather than waiting for the engine to warm up. 

Also keeps emissions down as it means the engine warms up quicker without the heat being sucked out of it through the heater matrix. 

Obviously it uses electricity from the battery/alternator so once the engine is up to temp, it gets switched off as it's then more efficient to use coolant heat instead.

 

1 hour ago, TomsFocus said:

Contender for 'longest title' award

I never knew it was even possible to have a title that long 🤣

You can usually tell if you have one by how quick you get heat when the temperature is below zero.

A simple check you can make is to look at the Fuse specification chart. If there are two or three high Amperage ones marked as Auxiliary Heater or something like that, probably in the Engine compartment Fuse Box, then check if they are actually there or not. 

If they are there then you most probably have an auxiliary electric heater fitted.

15 hours ago, TomsFocus said:

Contender for 'longest title' award.

Many modern cars have additional flat electric heating elements inside the heater box.  Diesels in particular but some small petrols do also. 

It allows you to have instant heat in the cabin on a cold morning rather than waiting for the engine to warm up. 

Also keeps emissions down as it means the engine warms up quicker without the heat being sucked out of it through the heater matrix. 

Obviously it uses electricity from the battery/alternator so once the engine is up to temp, it gets switched off as it's then more efficient to use coolant heat instead.

 

Haha! I’ll make sure that I include the belts serial code next time to beat this newfound record!

yeah when it’s cold out I would say my car takes 4/5 minutes to warm up when driving on 30mph roads so I guess that rules out the auxiliary heater!

wouldn’t mind one now you explain their use 

Cheers! 

13 hours ago, unofix said:

I never knew it was even possible to have a title that long 🤣

Title as long as Boris Johnson’s full name 

13 hours ago, Tizer said:

You can usually tell if you have one by how quick you get heat when the temperature is below zero.

A simple check you can make is to look at the Fuse specification chart. If there are two or three high Amperage ones marked as Auxiliary Heater or something like that, probably in the Engine compartment Fuse Box, then check if they are actually there or not. 

If they are there then you most probably have an auxiliary electric heater fitted.

That’s a pretty logical check! 
I’ll have a gander in there,

appreciated!