2022 E63 Tyres

[Big_Joe100000]

Hi all,

I have a 2022 E63S estate currently running Pirelli P Zeros: 265/35/ZR20Y at the front and 295/30/ZR20Y at the rear. c.5.5mm treat all round, c.2 years old, 4000 miles.

The font 'shudders' along at anything close to a quarter turn when cold/moving slowly, and even once warmed up it severely understeers out on the road. I don't have to try hard at all to get the car to understeer, which doesn't fill me with confidence!

Three questions to those much wiser than I:

1) Are those tyre sizes correct?
2) Was that year/model of E63 developed with P Zeros?
3) What alternative tyre would you recommend - I don't care about road noise or longevity, I just need the thing to stop understeering so badly!

All feedback most appreciated.

 

[mioba]

A good old tyre thread - i am out

 

[Rotorhead500]

Hi Joe. Is your model year 4-matic???

It sounds to me like transmission wind-up. On many 4-matic cars, MB's solution was to fit all-season tyres, I believe, to stop crabbing & wheel-hop. Not ideal on a 63 though.

It's entirely possible that car was developed on Pirelli tyres and Pirelli do get harsh in the second half of their lifespan!

 

[Big_Joe100000]

Hi Joe. Is your model year 4-matic???

It sounds to me like transmission wind-up. On many 4-matic cars, MB's solution was to fit all-season tyres, I believe, to stop crabbing & wheel-hop. Not ideal on a 63 though.

It's entirely possible that car was developed on Pirelli tyres and Pirelli do get harsh in the second half of their lifespan!

Thanks Rotorhead, it is a 4-matic system. Is there a recommended winter tyre for the E63S that will overcome the understeer during the colder months?

 

[SL63 Mark]

I managed to find my digital user manual recently buried in the car's settings, and that had recommended wheel and tyre sizes.

It was in the "Mercedes App" section, if you have a look in there, and search for "tyres" you should get all the info you need re: manufacturers recommendations.

I hope that is helpful

 

[Rotorhead500]

Hi Joe,

As per Mark, or have a wee shufti in your handbook - it'll give you an idea in there, I suspect.

I'm not sure where you're based (I'm on my phone at the moment), but you may not need full winters, all-season should do it, hopefully!

Depending how long you've had the car, it may be worth giving your dealer a kick as I believe it is a recognised issue.

The main downside will be the loss of grip in warmer months, if you keep them on (versus the summer fitment), but it should at least be predictable. To be fair, I used Falken AS210 all-seasons in to warmer months on a previous car and they behaved fine unless I was really playing.

When I had my C63 (W204), I used Dunlop Wintersport 3D over the chilly months, made a good difference in traction.

 

[JBell]

Three questions to those much wiser than I:

1) Are those tyre sizes correct?
2) Was that year/model of E63 developed with P Zeros?
3) What alternative tyre would you recommend - I don't care about road noise or longevity, I just need the thing to stop understeering so badly!

1) Yes they are correct

2) No, Mercedes will put what ever tyre on it they get cheapest and meets the spec so usually Pirelli or Continental

3) Michelin PS4 or Goodyear Eagle F1 Assymetric 6 are better tyres, the Pirelli are notorious for doing exactly what yours are

 

[s5tuart]

1) Yes they are correct

2) No, Mercedes will put what ever tyre on it they get cheapest and meets the spec so usually Pirelli or Continental

3) Michelin PS4 or Goodyear Eagle F1 Assymetric 6 are better tyres, the Pirelli are notorious for doing exactly what yours are

Also Dunlop Sport Maxx that I had on my Shooting Brake were good performers.

 

[JBell]

Also Dunlop Sport Maxx that I had on my Shooting Brake were good performers.

Forgot about those, very good tyres and extremely quiet

 

[Big_Joe100000]

Thankyou all for your responses, most helpful and appreciated.

I'm likely to go for the PS4's, at £1400 fitted I'm hoping for no understeer!

 

[brandwooddixon]

There seems to be quite a few people remarking that this is expected from P Zeros.
Personally I've been using ContiSport 6 and ContiSport 7 without issue on my W216.
Prior to that I was a big Michelin fan, but they're nomenclature got a bit confusing with PS4 and PS4S etc.

 

[rf065]

I remember in my youth, all the adverts for Pirelli tyres, P6 or P7 etc, but being young all my cars were a few years old by the time I bought them and the tyres had been replaced by then with Uniroyals or Firestones etc. The same when watching F1, Bridgestone appeared to be the tyre you had to have if you wanted the best.
Fast forward to a time when you could afford to buy cars that were not 3 years old and although second hand still had the original tyres on them. I quickly found out that despite decades of motor sport advertising hoardings, Pirelli's were not as good as I'd always thought they were. Bridgestone Potenzas were an even bigger disappointment.
You cannot under estimate the power of advertising, and as a motorcyclist from the 70's, don't get me started on Japanese Dunlops!