I am not sure where the Washer reservoir is on your model but from memory it is tucked away behind the bumper or under the wing. Either way you have to take a wheel liner out to reach it.
Your problem I believe is a build up of a jelly like sludge in the pump filter. The filter is on the end of the pump and easy to clean by washing it out, the down side is if the washer tank is full you need something to catch it in. BMW recommend their own Washer fluid the only difference is it has a anti-fungicide in it. There are several on the market just read the back of the bottle (I use Prestone from my local Auto Factors.
HI all, it seems the washers on my 650i are blocked on both the hood mounted washer nozzles. Headlight washers seem ok. Any advice on actions needed to clean these out and what I can do to try and prevent this happening again.
To check for manifold leaks I use a piece of frayed cotton which I pull around all joints if there is a leak it will get sucked towards the leak. Pay attention to the manifold to head fitting area.
as for coils Bosch should be OK though I believe Delphi were OEM fitment
If you haven't already check www.realoem.com put the last 7 digits of your Vin into the search box it will bring up your model. BMW moved from the N43 engine to the N46N I am not sure if it makes a difference to the coil packs or not, worth checking
Thanks again for your advice. I will check all the connectors and loom.
Yes both the coils and plugs were new and all Bosch, thought it best to go for better quality.
Not sure how to check for manifold leaks but will Google.
Thanks again for you prompt advice.
Sadly today that is all Dealers not just BMW "no code no problem"
Years ago had the similar problem with a Volvo T5. I had been in Poland on business, light came on coming back just after crossing into Germany. Volvo dealer could find no fault suggested a faulty O2 sensor, in frustration I changed the fuel filter and ran it with a fuel additive for a couple of tanks. Fault gone and never returned ? I believe it was poor fuel picked up in Poland.
You have also had some pretty extreme temperatures in Spain so could be one of the thermostats having a hissy fit ? Interesting to know if it clears with lower temps perhaps?