The heater in my 1999 Land Rover Discovery Series 1 won't blow cold.

SOURCE: land rover code p1177

hello mrs melissa well i got the same car . and 1st it used to do the same with me i change the fuel pump and the plugs and then it still the same. but what i did i change the elic cup and now it's runing fine and so power full !

SOURCE: Land Rover Discovery TD5 1999. Where is the Fuel Relay Switch

In the engine fuse box under the bonnet ,relay is the closest one to the front of the vehicle ,about £7 to replkace

SOURCE: Land Rover Discovery II 2000 with heater on it

have you checked your coolant? that might be why its blowing cold air

SOURCE: transfer case oil change- 1999 Land Rover Discovery II

No need for a diagram, to drain the oil, there's a drain plug on the bottom of the transfer box, under the handbrake drum. To fill, the fill plug is about in line with the centre of the handbrake drum and to the left. I think both plugs are 1/2" square. Fill to overflow with Texaco Multi-Gear 75W/90R. Takes about 2L or so.

SOURCE: 97 Land rover discovery 1 oil light comes on after approx. 15 mil

Tune-Up-Parts Link:

http://www.britishpacific.com/BPSite/LandRoverDiscovery/DiscoIService.html

Testimonial: "Great site for Land Rover parts. Thanks for the suggestion."