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td5 takes an age to warm up...


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Recently changed my 300tdi 90 ('96) for a td5 ('04) and I'm surprised at how long it takes to warm up in this weather (around 0C). At least 10 mins before the needle get about 1/4 way up and pretty close to that before any even mildly warm air appears!
Two questions really... Is this normal and whether it is or not, what can I do about it?? (... apart form put more clothes on!)

Thanks
Steve

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I would say it sounds about right for a TD5 at this time of year, when doing motorway speeds I find it can drop quickly

although the thermostats are not expensive <£20 IIRC I wouldn't bother changing it, it is at the bottom of the radiator so you will also have to change your coolant.

I made my own radiator muff and it makes a massive difference, you just need to keep your eye on the temp just in case it does start to get too warm.

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Jason.

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Probably a 'standard feature' but my 2000 td5 heating system is erratic to say the least.

Takes an age to warm up (that's expected) but once hot, it only pushes out warm air if the vehicle is moving fast (above 40 mph). I thought it could have been the speed of the water pump that made a difference (so for example, idling in traffic would not push the water around fast enough) but if I rev it hard at standstill it still won't produce any warmth. Heater fan works as poorly as it should and with direction on feet it still pumps out on the demisters. So no surprises there. It's almost as if there is not enough coolant (had that problem in previous cars) but the coolant level is fine.

On motorway journeys it gets lovely and warm but around town I freeze! I've had this since buying the Landie 3 years ago so it's not a new problem... but in this weather i'm not enjoying it!

Edited by western
same subject post merged
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TD5s are like that: they are efficient and waste very little heat into the coolant.

Even when mine is fully warmed-up [like after a 50-mile fast run] if I have the heater going full-blast then in cold weather after five minutes of slow-city-traffic/engine-idling the temperature-gauge needle starts to drop.

After ten minutes of idle it can be down into the blue gauge-segment.

This is why Eberspachers and Webastos were invented!

--Tanuki.

"Thank you for calling the NHS Incontinence hotline. Please hold......"

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Steve,

I have not had an issue with the inter-cooler, the bottom 45 degree bit is not covered just the grill bit, so some air is still getting through. You can roll the front flap up a little if you need to let more air in.

Jason.

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