I'm really hoping you all could provide me with some advice...
On Friday I took my car (2018 6sp R-Dynamic) to a JLR dealer (same one I've been going to since the purchase 3 years ago) for an oil change, a check up, and a state inspection. I've had her out, for the first time this year, a couple weeks ago for a little ride (~40mins each direction) and she was running great. Everything was fine when I shut it off at the dealer. I waited for the service to be completed, and then a couple hours later, I got in to drive home. When I turned the car on, something didn't sound quite right... was like a very slight, higher pitch whine/whirl sound. I thought it was maybe just me, so I started away. Once I got moving to higher speed and shifting, I immediately noticed a distinct, and reasonably loud, whine during shifting, specifically when pushing in the clutch. I went back to the shop, and had both the service contact and the shop leader listen to it while parked. They both could hear the noise when letting off the accelerator from higher rpms, and it was especially prevalent when pressing the clutch at those higher rpms. The shop leader's thought is that it's something to do with the pressure plate of the clutch not working correctly.
He said they could look at it, but they were quite convinced it didn't occur because of the oil change. While I'm clearly inclined to agree, I'm also 100% certain it was NOT making that noise when I got out before the service, so something must have happened during it. I drove it home, with some little hope it would straighten itself out, but to no avail.

I'm really distraught here ... not getting the impression they're going to be super helpful in getting this sorted (and not charging me for all the work!)... obviously I have to at least talk to the manager and try, which I will do. However, is there anyone out there who can provide some thoughts on what could have caused it?

Thanks.

 

Was the car driven during the service visit? Unless someone did something abusive on the drive and caused damage to the clutch, which is always possible but somewhat unlikely, it might just be a bad coincidence. Did they do any other repairs while it was in?

 

We've all seen Ferris Buellers Day Off and know it's possible.

 

@boomer7 Let's start with the most plausible cause: Check the oil level ASAP to make sure they did not overfill or underfill your oil. It has happened to many forum members!

 

@boomer7 The forum would really appreciate an update...

 

My first suspect would be the clutch release bearing, which is part of an assembly with the slave cylinder. Did they replace the clutch fluid as part of the service?

Cheers,

Don

 

Sorry for the slow response, I had to run out of town for couple days.
@RoverJoe no other service, and it seems like a pretty big coincidence.
@JagCode3 I checked the oil today, looks like it's overfilled

 

Good call, JagCode3!

Another trip to the dealer, boomer7, but now you have evidence that they made a very serious mistake.

Cheers,

Don

 

Why should overfilling the oil affect the clutch? When you go back to the dealer, see how much it is overfilled. Watch them extract the extra oil.

 

Overfilling oil on AWD F-types at dealers is quite common and is frequently reported here. The AWD variants take less motor oil than the RWD ones, and seemingly Jag never updated whatever procedures the dealers use.

 

The only thing I can think of is that oil could be seeping out of the rear main crankshaft oil seal and onto the clutch components...

Because of the bedplate design of the engine, overfilling with oil should not lead to the crankshaft churning the oil into foam, so hopefully the oil pump is not inhaling froth instead of liquid oil.

 

If these clowns can’t even do an oil change properly, just imagine something more complicated. Good lord.

 

The trouble with dealerships doing everying "by the book" is making sure they use the right book.

 

The amounts in the workshop manual are correct, but the general amount is less on these cars than all other applications that use this engine, so people put 8.5qts in like they would on every other car with this engine, and the capacity is actually only 6.5-7qts. They don't look it up because it's the same on every other car. Doesn't make it right but that's why it happens.

I don't trust myself to remember it all the time so I always checked fluid specs and capacities when doing service work, diffs, oil, whatever. Takes 20 seconds to look it up and not put the wrong stuff in or under/overfill.

 

First time I have read of 8.5 quarts (8.0 litres)!
Every reference I know of says 7.25 litres (7.66 US quarts) for the RWD AJ133 (V8) and AJ126 (V6) regardless of which Jag model, and 6.5 litres (6.87 US quarts) for the AWD versions.
Many reports on this forum of dealers overfilling AWD versions by a bit under 1 quart which points to someone at the dealership putting the RWD amount in an AWD car.
I can't recall ever reading of a RWD version being overfilled by a dealership, always an AWD.
I have always put exactly 7.25 litres in both my 2010 XFR and 2014 F-Type V6S (both RWD) not 8.5 quarts and every single time after testing the oil level showed smack on the Max mark and never a skerrick under.

 

It just seems like it has been such a problem for so long now, that it would have been addressed through internal bulletins and training or something. Just seems kinda crazy that it is still happening over and over.

Too bad more JLR techs weren’t taking your attitude/approach.

 

The 8.5 comes from all the Rover applications of the engine, which is what 95% of the techs see. There are so few jags by comparison, with the 'same' engine despite the different oil pan, and you're used to just putting the same amount of oil in all the cars, v6/v8 doesn't even change it on the rovers, so they just put oil in them and go.

 

Joe, if the customer made a reminder note about the using 6.5L for the oil change (for AWD) to the service manager when dropping off the car, would the techs find that helpful or insulting?

 

Most probably wouldn't care enough to be mad about it, doing an oil change is normally just something you are trying to get out of the way quickly. A note that says "please be sure oil is not overfilled like it was at the last service" would not offend and would probably avoid repeat issues.