Thợ máy kiểm tra dầu nhớt, còi và đèn xi-nhan.

Yes. Thợ máy commonly means mechanic, especially someone who repairs or checks machines, engines, or vehicles.

• thợ = a worker/craftsman/technician
• máy = machine

Together, thợ máy is a natural way to say mechanic in Vietnamese.

Vietnamese usually does not use articles like a, an, or the the way English does.

So:

• Thợ máy kiểm tra dầu nhớt... can mean The mechanic checks the oil... or A mechanic checks oil...

The exact meaning depends on context. This is very normal in Vietnamese.

The sentence follows normal Vietnamese word order:

Subject + Verb + Object

• Thợ máy = subject
• kiểm tra = verb
• dầu nhớt, còi và đèn xi-nhan = objects

So it works very much like English:

• The mechanic
  • checks
    • the oil, horn, and turn signal lights

Kiểm tra means to check, inspect, or examine.

It is very common and neutral. You can use it in everyday speech and in more formal situations too.

Examples:

• kiểm tra xe = check the vehicle
• kiểm tra máy = inspect the machine
• kiểm tra lại = check again

Because dầu by itself is broad and can mean different kinds of oil, depending on context.

Dầu nhớt specifically means lubricating oil / engine oil. In vehicle-related contexts, this is more precise and natural.

So:

• dầu = oil in general
• dầu nhớt = motor oil / lubricating oil

Here, còi means horn, as in a car or motorcycle horn.

It can also refer more generally to a signaling horn or siren in some contexts, but in this sentence about vehicle inspection, còi clearly means the vehicle horn.

Đèn xi-nhan means turn signal light or indicator light.

Yes, it sounds foreign because xi-nhan is a loanword, ultimately from French influence. Vietnamese has many everyday borrowed words, especially for older technology, vehicles, and urban life.

Breakdown:

• đèn = light/lamp
• xi-nhan = signal/turn indicator

So đèn xi-nhan = signal light, usually turn signal.

It is simply a list of things being checked:

• dầu nhớt = oil
• còi = horn
• đèn xi-nhan = turn signal lights

The pattern is like English:

• item 1, item 2, and item 3

So:

• dầu nhớt, còi và đèn xi-nhan = the oil, horn, and turn signal lights

This follows normal list punctuation.

Vietnamese often uses commas to separate items in a list, and và means and before the last item.

So:

• A, B và C

This is just like English:

• A, B, and C

Some writing styles differ slightly with commas, but this sentence is completely normal.

Vietnamese nouns usually do not show singular/plural automatically the way English does.

So đèn xi-nhan could be understood as:

• the turn signal light
• the turn signal lights

In real context, English often translates it as plural because vehicles usually have more than one signal light, but Vietnamese does not need a special plural ending.

Yes, you could, but thợ máy is more natural here.

• thợ máy = mechanic
• người thợ máy = the mechanic / a mechanic, with extra emphasis on the person

Adding người can make it sound a bit more descriptive or explicit, but in a simple sentence like this, thợ máy is the usual choice.

The sentence itself does not specify exactly. It just says that a mechanic checks:

• oil
• horn
• turn signal lights

Those fit several kinds of vehicles, especially cars and motorcycles. Vietnamese often leaves this unstated if the context already makes it clear.