[405 Mi16 oil leak from oil temp sensor?]

On 10/9/2021 at 6:07 PM, David405 said:

Got a somewhat mild oil leak. Appears to be coming from the oil temp sensor at the back of the sump/pan. At first, I figured it was simply leaking from the drain/plug, but some looking and feeling, I now suspect it's that oil temp sensor. Looking it up in the Haynes, seems like maybe it could just be a worn washer and not the component (sensor) itself. Any thoughts from you far more experienced owners? I'm guessing this is a fairly common source of a leak. So, I'd appreciate any wisdom!

does your sump look similar to this?

is it 405 or 406?

[oil leak from crankcase breather hose onto coolant pipe]

Peugeot 406 

VF38ER

Manual gearbox

 

just bought this peugeot recently and on my inspection I noticed the crankcase breather hose probably has been leaking for years without attention - probably the O-ring is bad. The leak is on the far left side and has dripped down onto the coolant pipe which now looks roasted

but still together somehow. I will need to clean that up or do a complete coolant pipe replacement if its too brittle. But first find the leak. 

In the second and 3rd pic you can see the coolant pipe with the oil on it.

 

[is this the drain plugs for gearbox & engine?]

Peugeot 406 

VF38ER

Manual gearbox

 

is this the drain plugs for gearbox & engine?

and is there a way to see the gearbox oil level - I cant find any dipstick only the fill hole plug next to the engine.

there seems to be a glitchy feeling with the gears esp the reverse gear keeps slipping out once its shifted into gear.