Bakım etiketi ile beden etiketi birlikte kontrol edildi.

These are both very common Turkish noun compounds.

• bakım etiketi = care label
• beden etiketi = size label

In this pattern, the first noun modifies the second noun, and the second noun usually takes the 3rd person possessive ending. That is why you get:

• bakım etiket-i
• beden etiket-i

This does not necessarily mean its label in the normal possessive sense. It is just the standard compound structure in Turkish.

So:

• bakım etiketi = care label
• beden etiketi = size label

not:

• the label of care
• the label of size

even though the structure historically comes from a possessive pattern.

ile here means with, and in many contexts it can also function like and.

So:

• Bakım etiketi ile beden etiketi = the care label and the size label / the care label together with the size label

In this sentence, ile links the two noun phrases.

A very natural English translation is simply:

• The care label and the size label were checked together.

birlikte means together.

So the sentence contains both:

• ile = with / and
• birlikte = together

This is not wrong or strange. It adds emphasis that the two labels were checked as a pair, not separately.

So the sentence suggests:

• both labels were checked
• they were checked together, in one combined check

Without birlikte, the sentence would still make sense:

• Bakım etiketi ile beden etiketi kontrol edildi.

But birlikte makes the idea of joint checking more explicit.

This is a very common Turkish verb pattern.

• kontrol is a noun meaning check or inspection
• etmek means to do

Together, kontrol etmek means to check.

In the sentence, it appears in the passive past form:

• kontrol edildi = was checked

Literally, it is something like:

• check was-done

This kind of construction is extremely common in Turkish, especially with words of foreign origin:

• test etmek = to test
• fark etmek = to notice
• kontrol etmek = to check

Yes. edildi is the passive past form here.

The base is:

• kontrol etmek = to check

Passive:

• kontrol edilmek = to be checked

Past tense:

• kontrol edildi = was checked

So the sentence does not say who did the checking. It focuses on the labels, not on the person.

Compare:

• Görevli bakım etiketi ile beden etiketini kontrol etti.
  The staff member checked the care label and the size label.

• Bakım etiketi ile beden etiketi birlikte kontrol edildi.
  The care label and the size label were checked together.

Because in this sentence the phrase is functioning as the subject of a passive sentence, not as the direct object of an active one.

Active version:

• Birisi bakım etiketi ile beden etiketini kontrol etti.
  Someone checked the care label and the size label.

Here, the checked thing is the object, so you may see accusative marking, especially on the last item in the coordination.

Passive version:

• Bakım etiketi ile beden etiketi kontrol edildi.
  The care label and the size label were checked.

Now the checked things become the grammatical subject of the passive sentence, so there is no accusative.

Because Turkish normally uses SOV word order:

• Subject + Object/other elements + Verb

So in this sentence:

• Bakım etiketi ile beden etiketi = subject
• birlikte = adverb
• kontrol edildi = verb

Putting the verb at the end is the most neutral and standard order in Turkish.

English usually prefers:

• The care label and the size label were checked together.

Turkish prefers:

• Care label and size label together were checked.

That end-position for the verb is one of the most important word-order habits in Turkish.

Yes, you could say:

• Bakım etiketi ve beden etiketi birlikte kontrol edildi.

This is also natural and clear.

The difference is small:

• ve = and
• ile = with / and

In many sentences connecting nouns, both are possible. Here:

• ve sounds like a straightforward list: the care label and the size label
• ile can feel slightly more like with or together with, which fits well with birlikte

So both work, but ile matches the sense of joint checking especially well.

Literally, beden often means body, but in clothing contexts it commonly means size.

So:

• beden = size, clothing size
• beden etiketi = size label

This is a good reminder that Turkish words often shift meaning depending on context. In a clothing or retail setting, beden usually refers to size, not the physical body.

Yes, it is natural and understandable.

• bakım = care, maintenance
• bakım etiketi = care label

Depending on context, people may also use more specific expressions when talking about washing instructions or garment care, but bakım etiketi is a normal phrase for the label that gives care information.

Because Turkish often does not mark plurality on each noun when the meaning is already clear from the structure.

Here you have two coordinated singular nouns:

• bakım etiketi
• beden etiketi

Together, they clearly refer to two different labels. Turkish does not need to make them plural individually.

Also, in English we say:

• the care label and the size label

not necessarily:

• the care labels and the size labels

So the Turkish sentence is behaving similarly in that respect.

A helpful word-by-word breakdown is:

• bakım etiketi = care label
• ile = with / and
• beden etiketi = size label
• birlikte = together
• kontrol edildi = was checked

Very literal order:

• Care label with size label together was checked

Natural English:

• The care label and the size label were checked together.

That kind of literal breakdown can help you see the Turkish structure, even though the final English translation sounds more natural with a plural verb.