Differential service

[madstaff]

Thanks for quoting my easy to read version of the VAG service book...

Ahh sorry, just seen its got your name across the bottom, i just screenshot it. 

[golfdave]

Thanks for quoting my easy to read version of the VAG service book...

Ahh sorry, just seen its got your name across the bottom, i just screenshot it. 

I don't mind so long as its correctly credited...but more importantly the info is being used!!..

[willni]

I know this is an old thread but I need a quick reply please..

My son is looking to buy a 7 GTi PP ( at a VW dealership ) and I’ve asked the dealer about the service history. The diff oil change was last done in May 2019, 26000 miles ago.

I said to the dealer that this is overdue now and it should be done but they said no, it’s every 40k.

The dealer has said they will give the car its 142 point check and change the engine oil but not the diff oil as it’s not due.

Reading this thread, that appears to be untrue. It should be every 3 years, and is not mileage related.

Can someone clarify please ?

Oil degrades over time regardless of miles, it's required. Silly they wouldn't just do it for the £127 (£105.83 excl VAT) they usually quote us for a sale, if your son likes the car say you're interested in purchasing the car but you expect the diff oil to be changed as a part of the sale.

Also mention alloy refurbishment if they're diamond cut 

[willni]

Yep, my point is that the diff service is due or it’s not. The last engine oil service was 8000 miles ago and they said “we will complete an oil change” ( presumably ) as it’s its due in 1000 miles time.

Now it’s possible that the sales person is mid-informed about when the diff oil change is due..

Alloys being addressed 

I'd put money on it that they thought you mean DSG and not differential oil, good sales people are far and few between when it comes to more technical bits as to be expected with the variety of cars they sell.

[Yusee]

Mk7 golf gti now around 10 years old, and I haven’t read any reports of diff failure.

If I was buying, it wouldn’t bother me that the diff oil hadn’t been changed since 2019.

It’s a seller’s market, unlikely that dealers will do it if they don’t believe it’s due.

If the car is what you want, buy it.

[madstaff]

Haldex diff oil is recommended at every 3 years, regardless of miles,  if the car ticks all the boxes I would go ahead with it.

My car had done 50k and according to the digital service history had never been done, so I did it myself and there was hardly any debris on the filter, so I can only summise a VAQ diff is not so hard on the oil as a Haldex diff in a Golf R, which when I last did one, the filter was covered in debris.

For the sake of a sale you would think they would just do it??

[Rudedog]

The 'DSG' mix up happened to me!  As part of my third year service I was clear that I wanted the front VAQ serviced.... 'no problem' they said but of course when I got the bill they had serviced the DSG! I complained (the front desk staff knew what I had asked for) so I got the VAQ done but only paid for the VAQ service.

[Adam T7]

Had mine done (local independent) at 3 years / 13k along with the DSG. Make sure that whoever does it cleans the Haldex filter as part of the service.

[madstaff]

Had mine done (local independent) at 3 years / 13k along with the DSG. Make sure that whoever does it cleans the Haldex filter as part of the service.

Trouble is unless you see them clean the filter or take a photo you'll never know.

I took photos of the haldex diff pump i did a while back to show the guy id done it.

Before



After

[joe6]

I had a similar mix up over vaq dif v haldex oil change. The receptionist said diff not serviced but when got to book it in different story - every 3 years and not mileage related. Seems a bit silly as 3 years could be a huge mileage? Would have thought use would also degrade the oil.