How do I know whitch fuse for radio in opel combo van

Question edited.
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https://www.google.com/search?q=Fuse+for+the+radio+Opel+Antara

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Question edited for clarity and typos.
Question moved to Vauxhall.

Relay R4.

https://fuseandrelay.com/opel/combo-c.html

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You must leave the radio ON like this until the SAFE mode clears.

When it does, to get the code accepted, press AS and then a couple of seconds later the 'on' button, together until it beeps.
As you know you will then see 4 dashes. Each dash is a number from your code.
Use the numbers along the radio (1 is first number in code, 2,3 and 4 the other numbers and so on)

As an example, if your code was 4432

press button '1' 4 times (gives a 4)
button '2' 4 times (gives a 4)
button '3' 3 times (gives a 3)
button '4' 2 times (gives a 2).

When you see your code displayed correctly on the screen press AS until you hear a beep.

HELP Radio SAFE mode

Open up the Owners Manual in your Glove Box, inside there it will show you a Diagram of BOTH Fuse Boxes and will tell you what EACH FUSE or RELAY Controls... There is a Picture followed by a couple word description for each of them.

Easy. Just remove each one one at a time until you find the bad one. Having the correct tool makes this quite simple.

under the hood left side

I like to check out fuses with a trouble light rather than a meter as a bad connection some times checks out ok with a meter .

need help i have a 98 opel combo 1.7 its puting out cold air and hot can any one help me

I suggest visit this link to download your owners manual: ford.com/maintenance/owners_manuals

Hope helps.

The speed-limiter is likely to be enabled via the ECU. Removing the limiter is a five-minute job if you have access to the GM Tech 2 electronic management/diagnostic tool.

If the van is yours then there's no legal requirement for the limiter. You could just book it in at a Vauxhall dealer for the limiter to be removed. They may charge you for an hour's labour though. Still worth doing in my opinion.