Az irányjelző nem működik.

Hungarian has two forms of the definite article:

• a before a consonant sound
• az before a vowel sound

Since irányjelző begins with the vowel i, you use az:

• az irányjelző

It means the turn signal / the indicator.

Irányjelző is the standard Hungarian word for a vehicle’s turn signal, indicator, or blinker.

It is a compound word:

• irány = direction
• jelző = signal, indicator, marker

So literally it is something like direction-indicator.

In everyday driving context, it means the signal light you use when turning.

Yes. Hungarian very often combines nouns into a single compound word where English would use two separate words.

So instead of something like direction signal as two words, Hungarian writes:

• irányjelző

This is very normal in Hungarian. You will see this a lot with practical everyday vocabulary.

Nem means not. It negates the verb.

In a neutral sentence, nem usually comes directly before the finite verb:

• Az irányjelző működik. = The turn signal works.
• Az irányjelző nem működik. = The turn signal does not work.

So here nem működik = does not work.

Működik is the 3rd person singular present tense form of the verb működni, which means:

• to function
• to operate
• to work

So:

• működik = it works / it functions / it operates

In this sentence, the subject is az irányjelző, so működik means the turn signal works — or with nem, the turn signal does not work.

Because Hungarian does not form negatives the same way English does.

English needs an auxiliary verb here:

• does not work

Hungarian simply uses:

• nem működik

There is no separate equivalent of does in this sentence. The verb itself carries the tense and person, and nem makes it negative.

Usually, yes — or at least that it is not functioning.

Depending on context, Az irányjelző nem működik could mean:

• the bulb is out
• the electrical system is faulty
• the signal is not currently operating

So it does not always specify the exact problem; it just says the turn signal isn’t working.

Yes, but the given version is the most neutral and straightforward:

• Az irányjelző nem működik.

You may also hear:

• Nem működik az irányjelző.

That still means the same basic thing, but it can sound a bit more like The turn signal isn’t working with focus on the problem itself.

Hungarian word order is flexible, but it is not random. Different orders can shift emphasis.

A rough pronunciation guide:

• Az ≈ awz
• irányjelző ≈ ee-raany-yel-ző
• nem ≈ nehm
• működik ≈ mew-kö-dik

A more connected approximation:

• awz ee-raany-yel-ző nehm mew-kö-dik

A few useful notes:

• Hungarian stress is usually on the first syllable of each word.
• ny sounds like Spanish ñ in señor.
• ő is a long rounded vowel, somewhat like a stretched version of the vowel in French peu or German schön.

Yes, it is completely natural and complete.

Hungarian often drops pronouns like he, she, or it, because the verb already shows the person. But here the sentence includes an actual noun phrase as the subject:

• Az irányjelző = the turn signal

So the sentence is fully explicit:

• Az irányjelző nem működik. = The turn signal does not work.

If you removed az irányjelző, then nem működik would just mean it doesn’t work, and the listener would have to know what it refers to from context.