Daniel84 Posted January 20, 2016 Report Share Posted January 20, 2016 Hi!! I have lupo 1.7 sdi. It takes ages to get his operating temperature( 87-90). And when I drive down to hills or when heatet is on, temperature fall down!! I have change termostat and antifreeze, but still the same. Anyone help??? P.s when I change antifreeze I put regular blu g11 antifreeze?? Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 20, 2016 Report Share Posted January 20, 2016 Yup... that sounds about right. You own an SDI Mine is exactly the same. If you're desperate for it to be warmer for whatever reason (mpg, heater etc) then I recommend a grill block. Quote Link to comment Share on other sites More sharing options...
christophertr6 Posted January 20, 2016 Report Share Posted January 20, 2016 Had a similar issue on GTI with temp gauge dropping. I changed the temperature sensor (which is different from the stat) and that appears to solve it. I still however have little heat in the cabin - but that's another storey. I may have blocked heater matrix or ait flaps working incorrectly. My experience does not extend to diesels so others opinions may be better. 1 Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 20, 2016 Author Report Share Posted January 20, 2016 Now i drive here in town without heater, and temperature very fast reach 90, but when i put on heater teperatur goes down . Now I will change temperature senzor and I l'll tell you is there any diference. Quote Link to comment Share on other sites More sharing options...
BioTriffid Posted January 20, 2016 Report Share Posted January 20, 2016 I've had this same problem i changed everything and it still didn't get hot like i wanted it to must be a common problem in lupo's? Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 20, 2016 Author Report Share Posted January 20, 2016 1 hour ago, Skezza said: Yup... that sounds about right. You own an SDI Mine is exactly the same. If you're desperate for it to be warmer for whatever reason (mpg, heater etc) then I recommend a grill block. Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 20, 2016 Report Share Posted January 20, 2016 The GTI is nothing like the SDI, so let's not take this off topic. SDI's just don't get warm. They don't. Without a grill block, mine gets up to about 69 degrees and doesn't get much hotter unless I really drive it hard. In the summer, it'll get hotter, but in this climate, they don't ever really get up to full temperature. With a full grill block, mine will get up to 90's where the thermostat opens and takes it down to about 85. I currently have a partial grill block which is a happy medium for me. Changing the thermostat will do nothing, unless it's genuinely knackered which it probably isn't. Changing the temperature sensor will do nothing. If heat in the cabin is the issue, then a grill block is your answer. Mine gets incredibly hot (if I want it to) in the cabin. I don't do a full grill block anymore, but a partial grill block is perfect imo. Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 20, 2016 Author Report Share Posted January 20, 2016 35 minutes ago, Skezza said: The GTI is nothing like the SDI, so let's not take this off topic. SDI's just don't get warm. They don't. Without a grill block, mine gets up to about 69 degrees and doesn't get much hotter unless I really drive it hard. In the summer, it'll get hotter, but in this climate, they don't ever really get up to full temperature. With a full grill block, mine will get up to 90's where the thermostat opens and takes it down to about 85. I currently have a partial grill block which is a happy medium for me. Changing the thermostat will do nothing, unless it's genuinely knackered which it probably isn't. Changing the temperature sensor will do nothing. If heat in the cabin is the issue, then a grill block is your answer. Mine gets incredibly hot (if I want it to) in the cabin. I don't do a full grill block anymore, but a partial grill block is perfect imo. What is grill block??? Quote Link to comment Share on other sites More sharing options...
cj1 Posted January 20, 2016 Report Share Posted January 20, 2016 1 hour ago, Daniel84 said: What is grill block??? A block... That blocks the grill..... less air in = more heat Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted January 20, 2016 Report Share Posted January 20, 2016 when you say the temp goes down are you just talking about the temp gauge dropping or are you noticing that the heater is starting to blow cold Quote Link to comment Share on other sites More sharing options...
Sausage Posted January 21, 2016 Report Share Posted January 21, 2016 Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 21, 2016 Author Report Share Posted January 21, 2016 On 1/20/2016 at 7:12 PM, Skezza said: The GTI is nothing like the SDI, so let's not take this off topic. SDI's just don't get warm. They don't. Without a grill block, mine gets up to about 69 degrees and doesn't get much hotter unless I really drive it hard. In the summer, it'll get hotter, but in this climate, they don't ever really get up to full temperature. With a full grill block, mine will get up to 90's where the thermostat opens and takes it down to about 85. I currently have a partial grill block which is a happy medium for me. Changing the thermostat will do nothing, unless it's genuinely knackered which it probably isn't. Changing the temperature sensor will do nothing. If heat in the cabin is the issue, then a grill block is your answer. Mine gets incredibly hot (if I want it to) in the cabin. I don't do a full grill block anymore, but a partial grill block is perfect imo. What is grill block??? Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 21, 2016 Author Report Share Posted January 21, 2016 The heater is bloing warm when the temperature is down but is not that warm when engine has reach his operating temperature, because sdi have 3 heaters on hosses that goes in the cabin to warm the liquid even when engine is cold... But I'm worry about that engine is not working on his operative temperature. Now I make grill block:) whit carton box, and I tell you the results..:) Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 21, 2016 Report Share Posted January 21, 2016 I use pipe insulation Quote Link to comment Share on other sites More sharing options...
cj1 Posted January 21, 2016 Report Share Posted January 21, 2016 1 hour ago, Daniel84 said: What is grill block??? A block, that blocks the grill... Thanks for skimming over my answer though. It really is as simple as I put it. it blocks the grill on the front of the car, as that is where air flows in. Air flowing in = cooling for the car (something you're trying to reduce), so naturally, restricting this airflow will make it stay a little hotter. its probably also worth mentioning you might want to remove this in the warmer months. It can be something as simple as cardboard. Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 21, 2016 Report Share Posted January 21, 2016 30 minutes ago, cj1 said: A block, that blocks the grill... Thanks for skimming over my answer though. It really is as simple as I put it. it blocks the grill on the front of the car, as that is where air flows in. Air flowing in = cooling for the car (something you're trying to reduce), so naturally, restricting this airflow will make it stay a little hotter. its probably also worth mentioning you might want to remove this in the warmer months. It can be something as simple as cardboard. I'll also add that this year I didn't remove mine, even in summer. No big deal, it got up to 90 as per (a little quicker), thermostat opened and was fine. I'll add that I don't potter down the shops, I do a minimum of 80 miles a day and quite often more. The SDI is a very old and basic design. It might not be fast but in its own way, it's a fantastic engine and one of the most versatile and reliable engines VW ever made. It's not to everyone's taste but the relentless reliability of the SDI puts a lot of engines (even modern VW) to shame. Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted January 22, 2016 Report Share Posted January 22, 2016 23 hours ago, Daniel84 said: The heater is bloing warm when the temperature is down but is not that warm when engine has reach his operating temperature, because sdi have 3 heaters on hosses that goes in the cabin to warm the liquid even when engine is cold... But I'm worry about that engine is not working on his operative temperature. Now I make grill block:) whit carton box, and I tell you the results..:) sound like you have a matrix problem, my sons car even though takes a while to warm up the heater blows nice and hot on his way to work and we have recently changed the matrix, there is only 1 heater in the cabin and that is fed by 2 hoses Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 22, 2016 Author Report Share Posted January 22, 2016 23 hours ago, Skezza said: I'll also add that this year I didn't remove mine, even in summer. No big deal, it got up to 90 as per (a little quicker), thermostat opened and was fine. I'll add that I don't potter down the shops, I do a minimum of 80 miles a day and quite often more. The SDI is a very old and basic design. It might not be fast but in its own way, it's a fantastic engine and one of the most versatile and reliable engines VW ever made. It's not to everyone's taste but the relentless reliability of the SDI puts a lot of engines (even modern VW) to shame. The heater is bloing warm when the temperature is down but is not that warm when engine has reach his operating temperature, because sdi have 3 heaters on hosses that goes in the cabin to warm the liquid even when engine is cold... But I'm worry about that engine is not working on his operative temperature. Now I make grill block:) whit carton box, and I tell you the results..:) Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 22, 2016 Author Report Share Posted January 22, 2016 I agree whit you completly. For me sdi is perfect engine, only I worry about is that this 1.7 engine can't hold his operating temperature when heaters is on, but is not big deal. The engine works perfectly Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 22, 2016 Report Share Posted January 22, 2016 24 minutes ago, Daniel84 said: I agree whit you completly. For me sdi is perfect engine, only I worry about is that this 1.7 engine can't hold his operating temperature when heaters is on, but is not big deal. The engine works perfectly Heaters always cool the engine. They take heat away. The old trick to stop an engine over heating was put the heaters on full. Quote Link to comment Share on other sites More sharing options...
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