The 75 and ZT Owners Club Forums - View Single Post - Rover 75(1.8) Broke down on M5-no water in engine-is the car now scrap?

SD1too · 29th April 2021, 14:49

Hello Andy,

I'm sorry; you've posted only five times and we're giving you a bit of a hard time aren't we.

The 1.8 engine does have a poor reputation amongst the general public but enthusiasts in the club will tell you that it's fine so long as it's looked after. When you have a problem it's best to raise it here before going to a mechanic. We have much specialist knowledge to help you and it's free!

Now, regarding the temperature sensor. They are extremely reliable but if they do go wrong the radiator cooling fan will be activated at fast speed (as a precaution) and the temperature gauge needle falls to the cold position and the high engine temperature warning light illuminates. Additionally you may notice poor running since the correct fuelling and ignition timing is dependent upon the signal from the coolant temperature sender.

The RAC patrolman is correct to say that the temperature gauge will show "normal" over a range of temperatures. In fact this range is from 75 to 115˚C. This applies to the 1.8, V6 and diesel versions of the 75/ZT and other manufacturers do it as well including BMW. We can tell you how to activate a digital display in your instrument pod which shows the actual temperature of the engine. This would have enabled us to tell you whether the sensor was faulty or not. It would be very unusual if it was.

Anyway, that's all history now. Would you like some advice on the damaged part of your engine? If you're not mechanically minded, can you post a photograph of it? We can then suggest the most cost effective repair and get you on the road again as soon as possible.

Best wishes,

Simon

29th April 2021, 14:49	#14
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,386 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hello Andy, I'm sorry; you've posted only five times and we're giving you a bit of a hard time aren't we. The 1.8 engine does have a poor reputation amongst the general public but enthusiasts in the club will tell you that it's fine so long as it's looked after. When you have a problem it's best to raise it here before going to a mechanic. We have much specialist knowledge to help you and it's free! Now, regarding the temperature sensor. They are extremely reliable but if they do go wrong the radiator cooling fan will be activated at fast speed (as a precaution) and the temperature gauge needle falls to the cold position and the high engine temperature warning light illuminates. Additionally you may notice poor running since the correct fuelling and ignition timing is dependent upon the signal from the coolant temperature sender. The RAC patrolman is correct to say that the temperature gauge will show "normal" over a range of temperatures. In fact this range is from 75 to 115˚C. This applies to the 1.8, V6 and diesel versions of the 75/ZT and other manufacturers do it as well including BMW. We can tell you how to activate a digital display in your instrument pod which shows the actual temperature of the engine. This would have enabled us to tell you whether the sensor was faulty or not. It would be very unusual if it was. Anyway, that's all history now. Would you like some advice on the damaged part of your engine? If you're not mechanically minded, can you post a photograph of it? We can then suggest the most cost effective repair and get you on the road again as soon as possible. Best wishes, Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.