Changed the charge air hose which was leaking/cut, the one between the charge air cooler (CAC) and the flap-air intake and it was quite a mess, 2 main reasons :

- Need to remove a lot of parts ( entire front bumper, headlamps, etc ) bc the radiator air deflector, on the right/passenger side, prevent access to the hose clip securing the hose to the CAC.

- Sourcing of the part itself was a nightmare ( and I had the #dialogys printout for that section for the specific VIN of the car ) #scenic2

...and mounted a towbar. Because it was super cheap as nobody seems to buy one for a ~20 year old car with an electric parking brake and no hill brake assist. Hey, I just need to be aware of that limitation.

160€ including shipping is a great price. Parts are powder coated. I just need to splice into the tail lights, which will be done tomorrow.

I will put some fuses in the wires to the trailer connector - I really do not want to disassemble the front of the car to get to the fuse box if trailer wiring is bad.

#renault #scenic2 #carrepair

Spent multiple hours just getting the cover on the fusebox and remounting the bumper.

In the end I used a dremel to remove some material from the cover to allow it to slide in place with a car around it while still clipping in place and being waterproof.

The way Renault wants this to happen is to remove battery, battery tray, ECU, some air filter stuff and slide the fuse thingy in from the side.

#renault #scenic2 #carrepair #autorepair #diy

Here we go... for some reason the engine must be running to get error codes from the ECU. I can't clear them while the engine is running and I cannot access the ECU with the engine off. Maybe something about can bus gateways?

DF232 is the sensor connector (ordered a new one, readings are ok if zip tied in place).

DF1070 seems to be "AC compressor took too much power" e.g. to disable the AC in case the compressor broke. I was told that the detection is not great and it sometimes just triggers. There seems to be a software update to improve this detection, but I need to get it from a Renault dealership.

I'll replace the broken connector and try to find a way to reset the ECU DTCs next. Baybe it works with the "default" OBD2 setting or I need to enable some CAN gateway switches...

#renault #scenic #scenic2 #carrepair #autorepair #diy

Temporarily reassembled this mess... but was interrupted by rain. Can't run the engine with some plastic covering the currently non-waterproof front of the car. Moving parts, hot etc...

So I switched the reverse light switch and its connector last week.

Indeed, the parking brake was unhappy about the inconsistent signals.

Reverse light works again.

ASR is happy after driving a few meters.

Apparently there is the option for TPMS but they are not fitted. Ok, I dont care.

Apparently there is a short for the steering column lock sensor. I will ignore this one for now.

The #iCarsoft thingy can show/plot the climate request signal. As the fan blew 100% in the meantime but just for 1 day I assume the climate controls have a bad CAN bus contact/loose connector.

#renault #scenic #scenic2 #carrepair #autorepair #diy

Please applaud my elaborate oil filling contraption. I spared no expense and bought a new funnel.

Yay 🍾Indeed, the switch AND the connector were bad. And the transmission got new oil, while at it.

The switch indicates reverse (pin 1 white and 2 yellow bridged) and neutral (pin 2 yellow and 3 brown bridged).

This explains the "catastrophic electric handbrake meltdown service immediately" display in case the car is on a red light in idle. The car wants to engage the electric brake but is missing this signal and is soooo sad.

#renault #scenic #scenic2 #carrepair #autorepair #diy

Hmmm... why is the connector for the magnetic clutch unplugged and grinding on the drive belt? 🤔

If plugged in, and driven by a lab PSU I hear a click and it draws ~50 W.

So I guess at least the magnetic clutch thingy and wiring is good.

So I need to debug this at the CAN bus level and see why it does not switch on.

As the replacement connector for the reverse light switch will arrive next week I can stop here for now, and do a fun thing. Like watch paint dry...

#renault #scenic #scenic2 #carrepair #autorepair #diy