I once had a Fiat 128 (?) saloon that was prone to carb icing.  It always happened driving up from the Midlands to Glasgow around Christmas and on a cold, sunny day.  The engine steadily lost power until I had to pull over.  After a few minutes it would be fine.  I guess the heat of the engine melted the ice as soon as the cold, dry airflow was stopped.  I was able to redirect the air-filter inlet so it drew air from just above the exhaust manifold.  The air filter had two positions - summer and winter.

 

Repeating a post from 2-years ago, the nozzles are affected by wind chill if the roads are wet and the weather is just wrong ( low air temp combined with low humidity).  My worst experience was driving past Loch Lomond on heavily-salted roads and it was horrendous with frozen jets.  The rear screen wash was not affected so I know it was not the fluid being too low a concentration.

Pre Wired Heated Washer Nozzle Spray 2 Pin Connector Plug VW/Skoda - 8E0973202 | eBay

 

Information source - Item 24 here: hose line for washer water - Yeti(YET) [EUROPA 2014 year] (7zap.com)

53 minutes ago, Wino said:

Pre Wired Heated Washer Nozzle Spray 2 Pin Connector Plug VW/Skoda - 8E0973202 | eBay

 

Information source - Item 24 here: hose line for washer water - Yeti(YET) [EUROPA 2014 year] (7zap.com)

I wonder if it will fit as my car is 2017?  But thanks for this.

I checked 2016, which is as recent as 7zap goes, and part number is the same, so I'd be confident.

Thanks Wino!  I have ordered two from eBay.  Do you know how the sound deadening is attached to the bonnet?  Clips or glue?

No idea, sorry.

15 hours ago, farty said:

I once had a Fiat 128 (?) saloon that was prone to carb icing.....redirect the air-filter inlet so it drew air from just above the exhaust manifold.  The air filter had two positions - summer and winter....

 Wow!  Blast from the past, or something.  You reminded me of doing this on a Fiat 124 - early '60's?   Went like a rocket, rusted about the same speed.  My father had it when I bought my first Landy, though.  Someone actually bought it from him after it had stood on his driveway unused for a couple of years after he had to stop driving. 

4 hours ago, farty said:

Thanks Wino!  I have ordered two from eBay.  Do you know how the sound deadening is attached to the bonnet?  Clips or glue?

 

You might have noticed that the washer jets aren't in their usual place on the bonnet skin - they are under the edge on the bonnet support pressings. A gentle wiggle (care in the cold with plastic fastenings) and the jet assy pops out. No glue or clips.

 

There is also a pre-formed grommet cable access formed and blanked off in the washer tube grommet. Looks like just cutting the blanking end off and a cable can be fed through to the washer jet areas. You can see all this within 30 secs of opening the bonnet!

No idea where the feed is located - but I'm sure you can suss that out.

Looks like the option to heat the jets is already part provisioned.

On 23/01/2018 at 21:36, kenfowler3966 said:

Wont they burn out if used all the time?

 

The heated door mirrors on my MG are permanently live - now 18 years old and 95k and no problem at all - (mirrors are Metro parts bin items!)

8 minutes ago, Yety said:

No idea where the feed is located

To do it as per factory it's as described here, on previous page: 

Would possibly require enabling via a coding change of the BCM, but easily tested without that to see if it's just 'there, anyway'.

57 minutes ago, Wino said:

To do it as per factory it's as described here, on previous page: 

Would possibly require enabling via a coding change of the BCM, but easily tested without that to see if it's just 'there, anyway'.

 

Thanks, yes saw that, I only looked under the bonnet to top up the washer fluid and noted my comments above in a flash - that parts looks easy.

 

If I were to fit, which I'm not, I don't have coding stuff so that's out. I'm not keen on straggling wires unless they can be say sleeved with an existing cable run.

It would be nice if there was a blank plug/socket with an ignition feed on that side of the engine compartment. VAG plugs/sockets are easily available - but it doesn't look at first glance if there is a suitable ignition fed source.

For the small advantage for me, it's not worth the effort.  

4 hours ago, Yety said:

 

The heated door mirrors on my MG are permanently live - now 18 years old and 95k and no problem at all - (mirrors are Metro parts bin items!)

And for years I have been religiously turning them off as soon as possible to ensure longevity! Never had one fail either, so perhaps not required as you suggest.

2 hours ago, kenfowler3966 said:

And for years I have been religiously turning them off as soon as possible to ensure longevity! Never had one fail either, so perhaps not required as you suggest.

 

Well, that's a first! As said above, they are on permanently with the ignition, there is no switch.

Both the "F" and the "TF" had this "feature", which model did you have?

The heated mirrors have switch

12 hours ago, kenfowler3966 said:

The heated mirrors have switch

 

Misunderstanding here then  - you didn't have a MG F or TF, but refer to the fact that Yeti' s have a switch, and yes, I have my Yeti door mirrors normally switched off as well 

I did my wind chill experiment.  A fan blowing air on a digital thermoter wrapped in a bit of kitchen paper towel.

 

Dry bulb 22°C

 

Wet bulb 17°C

 

Vodka bulb 13°C

 

This was 37.5% ABV

 

This explains why screenwash jets can freeze up at 0°C ambient when the concentration is good for -10°C  (my fan does not equate to 40mph so evaporative cooling could be greater).

Edited 3 December, 20205 yr by farty

I have heated washer jets but can't say I've ever noticed a delay in cold weather. 

 

Will try tomorrow.

A delay could be dangerous if your windscreen is obscured!

Pretty dangerous when you spray the windscreen wash from you heated nipples and the ambient temp is well below freezing and the cars interior and the windscreen is not above freezing.  Like yesterday and last night in much of Scotland.

My manual says the jets are heated when the engine is running and the ambient temperature is below +10°C

Seems like an ideal arrangement.

Probably can be checked by simply feeling for warmth with a little fingertip.

Edited 4 December, 20205 yr by Wino

4 minutes ago, Wino said:

Seems like an ideal arrangement.

Probably can be checked by simply feeling for warmth with a little fingertip.

I have not fitted them yet but will hook one up to 12V and see how hot it gets.  As it draws only about 100mA it will only be 1.2 Watts but I did feel a little warmth when I did the load test.  

I have tested them now.  I used a Flir thermal imaging camera.  The ambient temperature was 10°C and the heated part reached 46°C.

 

 

I also checked mine at 2 degrees ambient. 

 

No delay on washers.

Just had a closer look this morning while checking levels - it seems I have heated jets fitted already. We did not specify heated jets when ordering, but they are there. No wiring, just jets that work as intended. +/- 45 ohm each, making 3.24 w each.

I also removed the sound deadening pad, which is easy as the clips only need squeezing together with you finger nails to remove. I'm thinking about making up a little harness to come out through the washer tube grommet.

The only problem is I'm unsure how to find an ignition live feed. I understand that a feed is available from below 10*C - but anything complicated would be beyond me on a CANBUS vehicle. I think the exterior air temperature sensor is low down on the N/S, but there must be some output from the ECU? somewhere to feed the washer jets - possibly too complicated to retro-fit, certainly for me.

I might fit a simple manual switch to power up on cold days.