Hello everyone,

I’m new to the forum and I’m from the Czech Republic. I drive a 2012 Opel Zafira C and I really like this car.

My original Navi 900 stopped working, so I decided to replace it with the Navi 950. I already have the Navi 950 unit, but I read that it needs different microphone wiring. Is that true? What exactly needs to be changed?

I’m not very experienced with retrofits, so I would really appreciate any help or advice. Has anyone here done this upgrade in a Zafira C? Was it difficult? Any problems with wiring, compatibility, or coding?

Thank you very much in advance!

Hi everyone.

I am installing a new android unit in a 2014 Meriva B and I don't understand one thing.

With the unit I got a new Chinese wiring harness theoretically dedicated to my car. On the panel side of the CD400 there are two plugs. A large one (obvious where to plug it in) and a small one (number 1 in the picture, with two wires black and white).
The small one only fits in one place. To the 8-pin plug (with three wires) that was unplugged from the CD400 panel. But since now the CD400 panel is not plugged in, how can it work ?

Maybe I should not unplug the plug from the CD400 panel. But then what about this Chinese plug with two wires.

To summarize everything at my car works (steering wheel control, canbus) except the CD400 panel.

hello, im doing a research if shock absorber from astra with lowered chassis would fit the standard chassis.
i understand on lowered chassis a spring is "shorter" but what about shocks? would they fit on standard spring, would the shock act stiffer or same?

This GTC has the worst projector headlights I have ever come across, may as well use candles! they are a total joke, cannot see a thing, anyone suggest a good quality hir2 55w xenon HID headlight bulbs, I dont want LEDs as they are a fath to fit and throw up errors.

Hi guys, my name is Alex and I'm new to the forum.
I post there to make a kind request for anyone that has access to information.

I would like to install a heated steering wheel on a Astra J 2010 hatchback that didn't come with heated steering wheel.
My car had heated seats, bi xenon, electronic parking.
I have procured already heated steering wheel, squib for the heated steering wheel, and the central climatronic dual zone with all buttons (heated steering wheel, heated seats). My car only lacked the heated steering wheel button. 
Upon investigation I have found that in the rear trunk fuse box the no 19 fuse is missing alongside the pins for the 19 fuse.
I believe the wiring between the fuse and front of the vehicle is missing too.
Considering all purchased and already installed I would like to ask for help for a wiring diagram between the rear fuse box and wherever that wire would go (directly to the squib or the climatronic module).
Any other advice is really appreciated.

I wouldn't have made an account and posted it but i couldn't find any relevant information on the internet over the past 6 months. 

Do I also require a programing for the BCM? 

Upon installation of the squib there was already a connector waiting (for the heated part) so I believe the connection between the squib and the climatronic module is there.

Hi, I’m having a problem on my 2010 1.6 Sri Astra J.
The cooling fan is running all the time, even on motorway driving, it won’t shut off.
I’ve had a diagnostic tester on and it flagged up the following code.

P0480 - Cooling Fan Relay 1 Control Circuit

So far I’ve replaced the following:
- the sensor at the bottom of the radiator
- the expansion tank (with sensor)
- the thermostat with built-in sensor

I’ve also checked the 3 relays for continuity and operation with 12v supply, and noted they all work perfectly off the car, which suggests when fitted one or more are receiving power.

I don’t have access to an electrical diagram for the cooling system, which is making further troubleshooting difficult.

Anyone have an idea what to do next?

Hi Guys,
I have fuel gauge which is fluctuating and some time it tells you the tank is low in fuel and sometime it is showing fuel gauge it is on ¼ tank, so I get warning sign low in fuel sometimes.

Sometimes if the tank is less than half full or even ¼ full and if you have parked half on the footpath and half on the road, after a bit it may show the tank looks empty, as soon as you drive it might go back to ¼ tanks display.

If I have my half tank and over the gauge there is no issue, as soon it drops below half or near ¼ tank then it is showing low in fuel or sometime showing normal fuel level .

I was told by the mechanic I need to take the tank off and need to replace the FUEL SENDER UNIT Part number 13272601. I don’t know if my car has the Float, which may need replacing ?

He did not check the car, but he is saying this is common for these cars for this part to go maybe due to rust or keeping the tank low in fuel.

Some said you need to change the Fuel Pump as well I don’t know if this built into the tank or it is on the Engine side.

Your replies appreciated.

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Hey, I have a 1.4 Turbo GTC 2015. When driving it seems fine, but on the dual carriage way the other day going down to 50mph for road works uphill, then when back 70mph (still uphill) the car wasn't going anywhere, had to drop to 3rd to move it off 50ish mph.

Yesterday I was pulling off the dual carriage way and say 2nd or 3rd gear, foot down, again slightish hill, car was really slow.

When idling this morning, the revs seem ok on dash but sounded low.

There is no EML light on, plugged in and no codes whatsoever.

Can anybody shed some light on what this may be??

Had the vxr remapped a few weeks ago, here's a  short vid of it on dyno

https://youtu.be/Pm7ZuxdinbA?si=FUTkH-JRXHwfjBzO