Just visiting from Yeti forum. Relative has a 2018 1.5 TSi DSG with low miles (15k) and is staying with us for a couple of days.

 

Just checked the oil and water etc and it sounds quite rattly to me after starting up to inflate the tyres.

- Is that normal

- Any known issues around this. I'm sure the cambelt was done just before sale but not sure the the tensioner for example.

 

Any thoughts - if it's normal I don't want to worry them.

I'm onto my second 1.5tsi act dsg now, my current car has covered 65k from new, no its not rattly, neither was my previous 1.5tsi Act engine. Yes there would be some injector noise, they are a gdi engines. I've owned many cars from the 80's onwards including diesels, but I wouldn't consider this engine to rattle anymore than any of my other previous petrol engines, diesels aside. 

Although I have heard a few come on here complaining about rattly 1.5tsi's. 

I also consider this engine to be very fuel efficient, as two of the 4 cylinders cut off around a third of the time on my engine to save fuel. I've averaged 46mpg from it long term on regular e10 fuel, which it seems happy to run on, considering its 150bhp and I have an estate, I don't think that's bad. 

I'm still running with the original coolant and original timing belt. My cars on a 20 plate, too. 

It's normal for the revs to increase slightly on this engine from a cold start, then for them to drop back to a general lower tick over level again, shortly afterwards. 

Edited 25 May, 20242 yr by Phoenixboy

Thanks. Definitely sounds rattly - I'd better do a search - can you remember what the causes were on the previous ones ?

No, but I can remember a couple of people coming on here saying the same thing, one being a taxi driver, that motor has over 130k on the clock. 

I did have some rough running issues from cold on my previous 1.5tsi, change of plugs all resolved. Although it took a while to diagnose, as I waited until there was a fault code present, relating to a cylinder misfire. These engines seem to like regular plug changes. The coil packs are not uncommon to failure, either. 

If you ate not 100% sure when the plugs were changed last, I'd change them. 

Prior to me changing the plugs, with no ecu codes stored, the engine sounded a little lumpy when cold. 

 

Edited 25 May, 20242 yr by Phoenixboy

22 hours ago, Prezafab said:

I'm sure the cambelt was done just before sale but not sure the the tensioner for example.

 

This is a big red flag to me. Why would you not change the tensioner at the same time as the cambelt? That's just asking for trouble.

29 minutes ago, varaderoguy said:

This is a big red flag to me. Why would you not change the tensioner at the same time as the cambelt? That's just asking for trouble.

I agree, not my car. That is the only thing I would have thought would make it rattly - unless there are other suggestions ??

On 25/05/2024 at 09:58, Prezafab said:

 

 

 it sounds quite rattly - Is that normal

- Any known issues around this. I'm sure the cambelt was done just before sale but not sure the the tensioner for example.

 

 

You're probably overthinking this:-

• Re Rattly - these later direct injection engines are "rattly" at tickover especially with the bonnet up (which I think you had with checking oil etc). This is to do with the injectors and high pressure fuel pump. Any rattles from inside with bonnet down?
• Re Cambelt - if it's been changed you normally get a replacement kit inc tensioners etc. In any case the replacement interval has been revised to 15 years / 180k miles.

 

 

Edited 26 May, 20242 yr by bigjohn

... Not that far off our last model diesel Yeti to be honest, but they've just made it back down South ok, so it can't be terminal ! I know about the latest cambelt guidance but that's a whole different debate😶

 

I work in a garage and every one I have seen has a very slight rattle, more of a tick, just usually direct injection engine sound.