Replacing Glow Plugs

I have removed my glow plugs and they are marked bosch 0 250 202 022. are these the right ones?
I see that the element is 25mm. Could I go longer for more heating?
I have purchased a direct replacement on ebay for £6 each, various sellers.
Edit: I now see that the longer one which I really wanted ends 023
 
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Don’t fit a longer version without carefully checking as it could hit the piston and cause damage. Why do you need more heating?
 
Audi changed the specification after production to a longer element to provide better combustion and lower emissions. The change is referred to at the start of this thread. Anyway, I have ordered the parts so will be sticking with what I have got.
 
BHC glow plug report:Bosch 0250 202 023 11V (France 660[955])
Glow area length 30 mm
Glow area midbody 5mm
Overall length 97 cm
Been there since Audi Service more than 10 years ago.
 

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Fredaudi said:
BHC glow plug report:Bosch 0250 202 023 11V (France 660[955])
Glow area length 30 mm
Glow area midbody 5mm
Overall length 97cm
Been there since Audi Service more than 10 years ago.
Click to expand...
That appears to be the recommended one. I would have preferred it, but I suppose the original spec, which I understand was changed because of emissions requirements, will have to do.
 
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