I would recommend getting something like a silicon hose which would be stronger and cheap to buy by the length
Try Demon Tweeks as they have a good range of hoses
Maybe worth removing the fascia trim to see if there is something amiss behind there (e.g. dust build up, water ingress, etc).
Let us know what you find
It may not be the correct parts fitted so I wouldn't go by those numbers.
You would be better off going to somewhere like Eurocarparts or eBay and order a pair from the correct listing as opposed to matching the numbers
Seems there is a common failure on the instrument cluster
Nissan Qashqai Instrument Cluster Dash Repair – 2007 – 2012
£250.00 inc. Vat
NISSAN QASHQAI DASH CLUSTER REPAIR DASHBOARD / INSTRUMENT CLUSTER / PANEL FAILING /SPEEDOMETER REPAIR
Usually the dash starts flashing followed by total power failure ABS and other warning lights flashing. We replace the faulty parts with new more robust components.
The repair is carried out by fully qualified electronics engineers and your mileage reading will stay intact as we can retain the original data.
Common Faults:
FLASHING ON AND OFF
TOTAL POWER FAILURE
LED’S NOT ILLUMINATING
GAUGES NOT WORKING
BACK LIGHTING ISSUES
Sorry to hear you're having issues with it and am sure they will eventually settle down once the current problems are sorted.
I would look on eBay for a cheap OBDII scanner that can run through your phone (look for ELM327 Bluetooth variety that says its suitable for use on Nissan
Let us know what you find
It could be many things causing the issue but to be on the safe side it would be worth running a diagnostic scan on the engine ECU
If there was an issue it would normally bring on an engine management warning lamp
I would be tempted to drill a very small hole in the back of the lamp housing so it cant be seen and somewhere so no water can get in but small enough to allow air to circulate
It all sounds okay apart from the engine coolant warning but best be safe and have the codes read
It could be that these are historic faults and just need the memory clearing
Not sure what the 'auto' button is for but the other one is an immobiliser socket which you touch with a key adapter (usually hanging off the same keyring as the ignition key