RubenD

That’s why I liked the car. Usually I’m all about OEM+ which would imply that the Rieger parts would be a bit to much. But it does look rather nice.

It already has those parts installed

All mods are cosmetical, well and for the ears Nothing on the engine has been changed and to be honest 220bhp are way more than a driving license can handle in the Netherlands... The car originally can with the black pack. In combination with the white paint and red stripe in the leather I really like it. Modifications: - Spacers front and rear - Front grill in "RS" mesh style - Rieger spoiler lip on front bumper - Rieger side skirts - Rieger diffuser - Rear bumper top cover in black - Both Skoda logo's paint in black and white (instead of standard black with chrome) - Eissenmann Stainless steel cat-back exhaust I only did some vcds-mods thus far (set the soundaktor to 0%). And activate tailgate close with the dashboard-button and remote control. I do intend to install polybushes on rear of front wishbohnes to stop the creaking.

Tested this morning, cold engine, ac on Low + blower on high -> fan kicked in immediatly. So it does seem to work as intended.

I think I caused the damage to the beak in the connector myself. I suppose I stuck the tip of the multimeter probe in a bit to forcefully. But I guess the connector wasn’t properly clicked on. ”compressor run in” nevertheless still is unavailable. So I indeed think the N280 was shot. Time will tell. But be nice to hear from other Fabia owners with the new fan + a B unit.

Hallelujah!! When I put the connector back on the N280 I noticed it has a very tight fit around the plug of the new N280 valve. Maybe it wasn't properly connected after all? Who knows, but this is really nice way to kick of the weekend. 00705 & 00706 are still there. But I set the temp to low and the fan kicked in (engine was cold). So I suppose unit B is able to communicated via CAN with ECU to request fan cooling. Would it be possible to verify if this indeed is the case.

Vingers gekruist

Measured both wires again. Minus from N280 to battery = perfect. Signal from N280 to Climatronic is perfect. I did noticed that one of the beaks in the N280 had quite a gap. Corrected that, hope it helps. No I’ll have to put everything back together.

Yep, (still) isn’t there The 2 rods are welded onto the chassisleg. The loom is tied to one of them. No relaybox there. I’ll take a picture later today.

Thanks for your reply. I’m talking about: Basic Settings -> Compressor run in This is mandatory, but the option is unavailable in 08 HVAC in my car (which should not be).

Tomorrow I’ll also try to check the fan, to see if I can find a built date on it somewhere.

Or could it be something mechanical in the compressor after all. Pully incl. nut spins. Compressor never has made any stranges noises. Mechanic also didn’t noticed anything peculiar when he changed the valve. So I would say it isn’t the compressor. I think buying a C or D unit is the only option there is left, because I need to carry out the compressor run in.

Well this evening wasn’t well spend. I took apart the loom from altenator to 8p connector. All is in good nick. So tomorrow I can wrap it up again. And put everything back together. Brainwave: I think I’m in a loop. ECU oversees proceedings and detect the new N280 valve. Blocks valve because compressor run in hasn’t been carried out. But I’m unable to start this procedure (see screenshot) -> ECU keeps blocking the compressor. Blockage is now causing 00898 to pop up in 08. So I think my best bet is: Put the loom back together. And to be 400% sure, check loom (2 wires from N280 connector) by measuring the resistance. Ground merges somewhere below the battery box. Buy a C or D Climatronic unit and pray that it will be able to perform the compressor run in. Any other suggestions? VIN as shown in VCDS matches sticker in trunk.

Thanks for all the input, I alreadt tried to get nearer to the fan, diffucult to get access to. Lets see how the loom looks first The loom looks as old as the car and standard as well. Really really strange.

The posted 3 errors are from 08. Only used 01 to test the fan. Errors 00705 & 00706 are not related to the 00898 (my humble opinion). Please keep in mind, the aircon did work (intermittently). So I’ll check the loom again. I hope this resolves 00898. And considering “B” should be able to ask fan to operate, I think currently climatronic is not able to ask for forced/additional coolingfrom fan. I therefore think I should try a C or D unit in order to resolve 00705 & 00706. Im 100% sure I do not have the fan relay unit :). Loom is identical to schematics. P.S. VW has 40 years to arrange the additional 2 months/year. I suppose we have to wait and see.

I do think this is the case. But I’ll first disassemble the wiring loom. At the moment I do think a damaged wire is causing the 00898. I guess I’ll buy a secondhand C or D unit, just to see what will happen. Schematics are (as mentioned above) for May 2010 onwards.

When I erase the errors they clear. But immediatly pop-up when the car is started.

100% sure my car does not have the relaybox on the left chassisleg. It has the PCB in the fanmotor. As per attached plan (my car doesn’t have the second fan) is how my car is set up.

Brain wave of this morning: For error 00898 I checked the wiringloom. I measured resistence through the wiring. From connector to dashboard. No issues found. Seen from the N280 valve backwards I think both wires could be unbroken but still could be stripped and thus make contact (signal to ground). I think my best bet is to take apart the small bit of loom from compressor/altenator and check for cracks and creases in the skin of the 4 wires. That still leaves 00705 & 00706 unresolved. Thanks @varooom for the info. 22-10-2010 seems to be the first registration date. That implies an earlier build date. E.g. before 08-11-2010. The dealer can check the build date based on VIN? I still do think my car is MY11 and therefore will work with the C or D. Although there could be a mismatch between climatronic and ECU?

Thanks, how did you look that up?

Maybe this one will also fit? https://www.ebay-kleinanzeigen.de/s-anzeige/anhaengerkupplung-ahk-5ja803902-skoda-rapid-original/1547746788-223-4289 Best bet is monitoring ebay-kleinanzeigen.de you'll be able to buy a bar + hook for app. €125,- and than ask them to only ship the hook. 9months ago there were at least 4 bars available, currently none.

Hi all, I just introduced myself, also because I really need your help. I february this year I bought a Fabia Combi 1.2TDI MY11. Besides the known EGR issue all was well except the aircon. It worked intermittently. Sometimes it worked for longer periods and than stopped. Switch engine off, wait a little), start -> AC working again. Until just before my summer leave (good thing we used our other car for the summer holiday). I have been reading on the forum and have checked a lot already, unfortunatly to no avail. I think what to do next, but I might be overlooking something. The car: Fabia Combi 1.2TDI Facelift 2010 -> best build date I'm able to find is the first registration date -> 22-10-2010 VIN: TMBJK25J4B3091*** Chassis Type: 5J-SK25 (6R0) Climatronic unit 5J0 907 044 B -> unit has a built date: 28-11-2014 -> which means it has been replaced before. Errors in 08 HVAC: Wednesday,31,August,2022,21:21:27:00009 VCDS Version: Release 21.9.0 Running on Windows 10 x64 www.Ross-Tech.com Address 08: Auto HVAC Labels: 6Q0-907-044.lbl Control Module Part Number: 5J0 907 044 B HW: 5J0 907 044 B Component and/or Version: Climatronic H09 0102 Software Coding: Work Shop Code: VCID: 295948A340F92BC136-807C 3 Faults Found: 00705 - Relay for Coolant Fan; Stage 1 (J279) 009 - Open or Short to Ground Freeze Frame: Fault Status: 01101001 Fault Priority: 3 Fault Frequency: 1 Reset counter: 207 Mileage: 156320 km Time Indication: 0 Date: 2063.14.31 Time: 21:04:47 00706 - Relay for Coolant Fan; Stage 2 (J513) 009 - Open or Short to Ground Freeze Frame: Fault Status: 01101001 Fault Priority: 3 Fault Frequency: 1 Reset counter: 207 Mileage: 156320 km Time Indication: 0 Date: 2063.14.31 Time: 21:04:47 00898 - Control Circuit A/C compressor 010 - Open or Short to Plus Freeze Frame: Fault Status: 01101010 Fault Priority: 3 Fault Frequency: 1 Reset counter: 207 Mileage: 156320 km Time Indication: 0 Date: 2063.14.31 Time: 21:17:13 I read various topics: https://www.briskoda.net/forums/topic/205880-air-con-problem/ https://www.briskoda.net/forums/topic/419404-aircon-issue/ https://www.briskoda.net/forums/topic/380764-00705-relay-for-coolant-fan-stage-1-j279-31-00-open-or-short-to-ground/ What have I checked / noticed thus far (not necessarily in chronological order): - Wiring from compressor control valve to climatronic-unit -> no damage - Wiring from cooling fan to ECU/Fusebox -> no damage -> car also does not have the separate controlunit with 2 relais nor does it have a temperature sender in the radiator -> it has the newer version fan with 4p-connector and integrated PCB in motor (from factory). The fact that the controlunit isn't installed, to me, also explains errors 00706 & 00706. This also leads me to believe the car needs a C version climatronic unit? - Tested fan via Output test, works perfectly fine. - Pressure sensor works perfectly fine. - Replaced the 4 AC fuses. - The climatronic does not seem to have Software Coding, the field above is empty -> does this imply that the unit is toast? I do think so, I checked my other car and it is showing software coding. - Bought a secondhand climatronic "B", also does not work, software coding is also empty -> I think it is toast as well. - We replaced N280 (compressor control valve), probably a waste of time and money, maybe not. I'm not able to start the compressor run-in because the option is missing/unavailable, only "Flap Motors" is available. - I monitored the shut-off codes, when the errors are cleared, AC off, engine off = 6. Engine started, AC off, blower off, 9. Activated AC, 0 and immediately jumped to 16 -> I think this is also because the climatronic is toasted and/or "run in" isn't completed. I'm not able to read the amps (value it not available in Adv. Meas. Values) so I can't monitor the 0.800 limit in relation to the temps. - Adaptations is also empty, only channel 00 is available, reset to factory defaults. 0 = Compr. ON 6 = Compr. OFF: ECON Mode active 9 = Compr. OFF: Blower OFF 16 = Compr. OFF: Compressor Activation faulty Climatronic unit Currently installed: 5J0 907 044 B I think the car needs a 5J0 907 044 C instead of the B. ETKA stated that the C version is for cars 08-11-2010 onwards. Elsa shows wiring etc. changed as of May 2010 -> earlier in the year. My car matches these schematics (without relais J279 & J513). Questions: - Is there something else I can check or do? - Can I "inject" software coding into the B unit? I do not know what the security key is, I was hoping this would unlock the unit to get it going again. - Shell I try my luck with a secondhand 5J0 907 044 C climatronic unit? In the Netherlands we have this amazing company called AC Tronics, they can test and if need be repair the current unit, but I do believe that is a waste of money. Any thoughts, please share these with me. If somebody would like to get more data / input, please let me know!

Hello, My name is Ruben and I live in the Netherlands. For as long as I can remember I'm crazy of cars. Always have been, always will be! I tend to stick to cars for a while. Thus far I started with a Mk2 golf GTI 16v KR (still have it, in storage 😞 ). Moved onto a really nice Seat Cordoba Cupra (1.8 20VT) in the tipical blue, with (replica) 17" BBS CH wheels, coilovers... Than I was able to buy a Mk1 TT, 225ps S-Line in red with 18", Bose. In the meantime my wife drove 2 Audi A3 1.9 TDI PD 130, we really loved those cars. Drove the first from 300k km to 430k km. The second one from 180k km to 300k ->we decided to sell it because of a change in tax regulations. I was able to save up enough to buy an Octavia Mk3 pre-facelift RS! I bought it in Germany and imported it myself just before the prices went crazy. The previous (second) owner modified it a little. It also came with 2 sets of wheels (original 18 & 19"). I did already had to replace both magnetic valve of the camshafts. I also installed a removable towbar (for the summur holiday and bikerack). In April I started a new job so we replaced our second car for a Mk2 Fabia Combi 1.2 TDI facelift, EGR delete + chip, the milemuncher! I tend to be reader and do not reply that much. But since I now need some support (with the Fabia) I decided to say hi.