MINI Cooper Forum banner
Cancel

Wiring diagram help please

2362 Views 1 Reply 2 Participants Last post by  mike1967, 
V
I have an on going issue with my 04 R50 I am looking for someone who can help by reading a wiring diagram. My problem is that the engine temperature gauge goes to maximum assoonas the ignition is switched on, I have changed the thermostat, changed the Rad cap, changed the sensor in the head, yet it still goes straight up. I have ruled out problems with it actually over heating....i have removed the plug from the sensor and it still goes straight to max. As I see it the problem may be a wire going to ground or one or more of the relays has failed. I need to know what colour wires come from the sensor and the route they take to get there....I need to identify which relays to look at, I have tested the top 4 in the engine compartment fuze box need looking at....
Help
Reply
Save
Like
1 - 2 of 2 Posts
M
the devil and the deep blue sea ,,, best case its a wire rubbed through and have a positive to earth fault with that line from the dme worst case is the dme ie ecu is faulty cheapest way to fix ecu issue if it is , is to buy a ecu and key and bcm kit off ebay link below for a idea
www.ebay.co.uk

Mini One R50 00-06 1.6 16v Petrol Manual ECU kit key 7515130 7513981 6918352 | eBay

Engine ECU: 7515130 + 7513981. Clocks: 6918352. Model:One R50. Valves: 16v. Fuse box: 1509011 518030317. Fuse box: 1480790. 1 x ECU Kit. Make: Mini.
www.ebay.co.uk
main dealer will ask £700 for ecu plus programming extra £200 plus a £190 for diagnostics,
another way is to find a ecu have it cloned £250 ish with ecu,
if engine harness link below
www.ebay.co.uk

Mini Cooper One R50 Petrol Engine Wiring Loom Harness | eBay

Find many great new & used options and get the best deals for Mini Cooper One R50 Petrol Engine Wiring Loom Harness at the best online prices at eBay! Free delivery for many products!
www.ebay.co.uk
the coolant temp sensor is run via engine ecu is switch earthed via ecu
Reply
Save
Like
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
MINI Cooper Forum
Join our Mini Cooper Forums to talk about your new Mini. From reviews, mods, accessories, reliability concerns and more, this Mini Owners Club is full of info!
Full Forum Listing
Explore Our Forums
General Discussion UK & Ireland Discussion & Event Planning First Generation MINI Cooper S First Generation Faults & Fixes Australia
Top