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Morning Rob If you are buying from a Dealer get them to fix it BEFORE you buy. If you are buying Private walk away as there are no "cheap fixes" with a BMW just ask yourself why the current owner hasn't fixed it? Don't listen to rubbish like "it doesn't affect how it drives? Or the parts are easy to get on Ebay ? It could be a sensor fault, it could be a control unit fault, it could be a steering rack fault so unless you have the skill knowledge and equipment to diagnose and repair it walk or it will empty your wallet faster than you think is possible. Dave

Here is my two pence worth 🤣 The sensors are easy enough to check with a multi meter and as they are not throwing codes the issue may be elsewhere. Check the thermostat and temperature switch as your temp gauge is measuring sometimes over hot it could be fuel evaporation. A check with an infra-red thermometer should tell you what is going on when up to temp and the issue is there. If it is above 90 c that could well be your issue. There is a temperature switch at the bottom of the Rad plus the thermostat in the housing. On my E53 4.6is I fitted a lower value thermostat 80 c to keep things cool. Have you also checked if the Pusher electric fan is operating, on start up the fan should self-test by spinning up. Dave

Hi kev. what car and engine is it? I had an issue similar and it turned out to be the cam timing sensor on the pulley on an e36 petrol engine. car wouldn’t see the sensor and wouldn’t start when it was hot, also lots of misfiring. also, I cracked my thermostat housing which caused overheating and non starts and stalling. I fixed it by getting a new car😞

Morning Rod Welcome to the Forum Never had one of these to look at or play with so this is just me thinking out loud 1. White smoke, experience tells me it is either water vapour caused by condensation in the exhaust or as suggested possibly an engine breather fault. The key would be smell if it is breather related it will have a strong smell also breather issues normally manifest themselves after the engine has been ticking over for a while. Water vapour will have very little smell and clear quickly as the exhaust warms up. 2. You say a mechanic wants to investigate/correct a fuel tank pressure sensor fault? Logic tells me that a fuel delivery issue would cause either over fuelling (a strong smell of unburnt fuel) or very poor erratic running along with erratic performance/MPG. Have you had the issue investigated by a BMW Dealer or BMW Specialist? If this sensor issue is cleared, does it return straight away? On most models the fuel tank pressure sensor is faily easy to access test and change if needed. BMW like many other manufacturers tend to aknowledge even possible Warranty issues faster in the USA due to the different legal system, while here in Europe as you have discovered things are very different. Dave

Morning Robin Who needs Navigation when you have a car like yours 😁 An Aussie once told your never lost until your below a 1/4 of a tank of gas 🤣 BMW (and a few other German marques) for years never believed in 7-digit post codes? Having said that my E53 (original Nav system) might not believe in 7 digit post codes but it does ask House name or number. My E70 is upgraded to an Android system so I have a choice of Google Maps, Waze or Igo all very quick to program. My experience of BMW (Volvo and Mercedes for that matter) OEM systems is the input seems laborious compared to many aftermarket systems available Enjoy that Beemer Dave