Just make sure youre sitting down when Mr BMW tells you what he wants for 4 bits of plastic !

ive just bought and fitted a set of those ones on ebay from Riga. No complaints, good value, service and a perfect fit. Hard to find in breakers yards.

Best to get someone with a half decent diagnostics and you'll know in 2 mins exactly what's up.

Simple answer to your question is NO. I've had 8 of them and all had problems. Would I drive anything else ? NO !

Just had a look on the ZF site and the mechanic was correct after all. All info here.

https://www.zf.com/unitedkingdom/en_gb/ ... e_oil.html

Re- above post ! Just out of curiosity where did you see that temp for refilling the gearbox with engine running ? I'm curious because a bmw mechanic told me some time ago that when they replace gearboxes in-house the temp has to be between 30-35 deg C. Anything higher and you have to start all over ...

Hopfully both your are historic. Nothing serious anyway. Do they both clear ?

think 34 is a temp sensor on gearbox and 1E possibly the auc sensor ( usually on the pollen filter housing ) Often people just forget to reconnect it after pollen filter change.

If you decide on doing it yourself you will need a second pair of hands to sit in the car with the engine running and going through the gears as you are filling. I have an infrared thermometer I use for my bread oven and I point this at the sump while filling. Temp needs to be around 30-35 deg doing ...

Mine is 6 speed. There's no need to remove the support bracket to get at those last 4 bolts. I just got a spare torx bit and cut it in half with a grinder. With the short bit and a spanner its easy enough to get them out and when I was finished I replaced the 4 awkward bolts with hex heads for easy ...

Did mine (E70) this afternoon.
£62 for genuine ZF sump kit
£60 for the Oil.
1 .5 hours from start to finish.
At £1000 someone's taking the Mick.

I know its a bit late now but im using one of these which not only allows you to track your car but you can also disable it from your phone via the supplied app.
https://rover.ebay.com/rover/0/0/0?mpre ... 1136139882

One thing comes to mind. You said your indi changed the glow plug controller recently. You need to follow the 2 vacuum lines that run over the top of the controller because I have seen it more than once that when the new relay is fitted one of the vacuum lines slips down and gets piched under the ...