My car was serviced lately, but now my sound system is blocked and i need the code to unblock it, where will i find this code?

I don't know the radio brand. But generally, some radios are blocked for some time after entering a wrong code. Entering next wrong codes multiplies blocking time. Try to have switched on the blocked radio for longer time, it may offer entering another code. It is a good idea to find out the way how to enter the code before its entering. Sometimes it is quite tricky.

Yes you can, for all radio codes and instructions on how to enter the code follow this link: Car radio codes in Uxbridge London Gumtree

Sounds like blocked fuel line. Happens often when the car is ran on nearly empty tank. All the junk at bottom of tank gets sucked into system. Unblock fuel line. Red.

Late 90s GM engine common fault bad gaskets cracked blocks so compression is bleeding off into coolant system. Your problem sounds similar. need a real shop and real mechanic

A request for a PUK code ("Personal Unlocking Key") will appear on your phone if your SIM card PIN code is entered 3 consecutive times incorrectly.

Your SIM card will then become "PUKed" or Blocked. This is a security measure to protect your service.

You need to call the Customer Service department of your cell phone provider and they will give you the PUK code which will unblock your SIM card.

many things can cuase this, the first thing to do is have the computer scaned, there should be codes it there, these codes will give a general idea of the problem. you should also check the trany fluid level,(engine warm,in park, level ground). there may be a few things to check, the distributor cap and rotor, also the wires. you may have weak fuel preasure,or even a bad module, so start by having the codes pulled and will go from there,also it doesnt start now,check the fuel preasure and also check for spark at the plugs.

Yes, it can be unblocked at the service center.

most a/c filters are located behind the glove box but i don't think that is the problem have you had your a/c system serviced lately, is the compressor cycling on and off constantly if so this means that it is low on freon.

Go back to the dealer and go to the service department and tell them your situation. They need to call and get the code for you!

You can go to a Volvo dealer and they can check the code in the system with your radio serial number, and this should be free of charge.