Knocking sound inverter side.

yes, how many km on her? can you post a recording?

 

Under what conditions does it knock ?
Engine running or engine off ?
Car moving or stationary ?
If moving:
is it in EV mode or ICE ?
is it on rough road or smooth ?
Is there a passenger under the hood trying to get out

 

Does it sound like a suspension sound - does it make the noise when going over bumps, or while braking, acceleration? While turning the steering wheel?

 

Is it continuous while driving with the engine running - or only at the moment when the engine starts?

 

There is always a slight sound when the engine starts. But it's so soft that, unless you're waiting for it, you won't notice it. Is this the sound it's always made, or something new which has just appeared?

Basically the engine is stopped - then, like in any car, it starts. In a "normal" car, that's done by the starter motor whizzing the engine and the engine shudders into life. In PRIUS, the Hybrid Synergy Drive uses one of the Motor Generators to spin up the engine and it fires - much smoother than starting a "normal" car, but still, there's a slight shudder you can hear, rather than feel, as it starts. More noticeable when the engine is cold. I've never noticed any sound when it stops - but it probably does momentarily - my 65year old ears may miss it. If it's louder than very soft, it could be something wrong.

How loud?

 

Are there any Toyota Dealers in Jordan?

 

I would check the engine mountings.

 

You think so? - in a car with only very kms. I've only had to replace engine mounts on cars over 10 years, 200,000 miles. Anything is possible, but my next suggestion is to check that nothing is loose.

 

The mountings shouldn't be worn as such on a new car, but I've seen new and nearly new cars with nuts or bolts missing or loose (admittedly not Toyotas).