Coolant Leak, Heater not blowing warm air. I've tried looking on topic. Bit of advice please?

[CamdenJagBoy]

Hi all, Hope it's not been brought up too often. My Jaguar 2003 XJ6 3.0 V6.. OK: When i check and fill the coolant, start the car, let it run - it doesn't leak. When i'm in traffic queues (not unusual here in London) the temp gauge starts rising, i get a low coolant msg on the dash (so i'm assuming it's now leaking coolant) as soon as i start moving again the temp gauge drops to the normal midway point. When i got back today from one hours London driving i noticed there was a coolant leak. (facing the car it's coming from the left hand area - left of the radiator) Also and very probably related, the heater doesn't blow warm air.)

I only bought it as few weeks ago and the poor thing had been sitting not being used for some months. I'm taking a guess at a split hose etc. Any more informed mechanically minded chaps out there?

I've had quite a lot of Jaguars, this is my first V6 tho' - i've had XJ8's XK8's XKR etc. 

I'm in Central/North London, any Independents you can recommend to sort this out?

Much thanks.

Edited November 10, 2022 by CamdenJagBoy
miss spell

[CamdenJagBoy]

Update, i've had a look underneath it, the leak is coming from under the radiator on the mid/left, steady like a just slightly turned on tap. So - is that a case of getting a local garage to replace the radiator, or should i try a repair ?? Is this also the source of my heater blower not blowing warm air? (must be i assume? - not getting a vacuum?)

[Wrinkly]

3 hours ago, CamdenJagBoy said:

Update, i've had a look underneath it, the leak is coming from under the radiator on the mid/left, steady like a just slightly turned on tap. So - is that a case of getting a local garage to replace the radiator, or should i try a repair ?? Is this also the source of my heater blower not blowing warm air? (must be i assume? - not getting a vacuum?)

Personally I would be inclined to have a new radiator, first cost usually being the least cost. Especially if the repair lets go at some stage and you lose all of the water.

Regards and Best Wishes, John