The antidote to bloated M Cars, My 2000 S50 M Coupe

The antidote to bloated M Cars, My 2000 S50 M Coupe

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urquattroGus

Original Poster:

1,469 posts

155 months

Wednesday 18th December 2019
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Pleased to say that I've managed to acquire one of the cars on my "list"

I've just sold my 1996 TVR Griffith 500 and replaced it with an Estoril Blue S50 BMW M Coupe or Z3M Coupe.

I've had her about a month now and no regrets so far.

It's exactly what I was looking for, something cool and quirky, fun to drive and yet usable.

She's just coming up to 20 years old with 88k miles on, a few bits and pieces to tidy but generally in fine fettle and with a huge amount of service history.

First few things have been a set of new Michelin PS4 Tyres to replace the 9 year old tyres that the car came with, and fitting a new throttle cable which seems to have liberated about 40bhp as the old one was stretched and not giving WOT, £60 well spent on that!

I absolutely love driving it, cable throttle, no TC and it feels light and direct.

Coming from the TVR and before that a Maserati 3200 it also feels re assuringly well put together!

Maybe controversial but I think this car reminds me how good BMW M were for a pure driving machine, current M cars just don't really appeal to me.

My DD is a Alfa Giulia Quadrifoglio which sits alongside a 1966 Alfa Giulia so the M Coupe seems like the perfect in-between usable modern classic for me to enjoy. I can see why many cars have a good number of miles on.

Need to get some pictures sorted soon smile

Other plans are perhaps a Hayward and Scott rear exhaust system, and maybe sports cats with an X Pipe.

Supersprint exhausts are another consideration but I've heard they lean towards being too quiet and also seem to come at quite a price.

I currently have AC Schnitzer rear boxes, something I wasn't keen on although the look has grown on me, have to say though prefer the 4 pipe staggered look to the twin Schnitzer pipes that look a bit like they belong on an SR Nova smile

Also going to remove the clutch delay valve and consider fitting H&R anti roll bars which seem to be well regarded.

Edited by urquattroGus on Wednesday 18th December 13:31


Edited by urquattroGus on Wednesday 18th December 13:32

urquattroGus

Original Poster:

1,469 posts

155 months

Thursday 19th December 2019
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VeeTenM

346 posts

79 months

Thursday 19th December 2019
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Nice, do miss mine. I had H&S exhaust on my car along with Evolve Carbon Airbox, sounded amazing.

Get over on https://www.z3mcoupe.com/forum/forumdisplay.php?f=...


urquattroGus

Original Poster:

1,469 posts

155 months

Thursday 19th December 2019
quotequote all
VeeTenM said:
Nice, do miss mine. I had H&S exhaust on my car along with Evolve Carbon Airbox, sounded amazing.

Get over on https://www.z3mcoupe.com/forum/forumdisplay.php?f=...
Thanks, did you sell to a guy in Scotland? I was talking to him about his highly modded car, sounded interesting.

Carbon airbox is tempting although Evolve apparently won't map a S50 anymore, only person in the UK is Wayne at Chipwizards apparently.

I'm also a bit unsure about going for Alpha N as I've read it can be bad at part throttle/not as drivable as you lose the MAF.

Trying to mod her but without compromising usability smile

VeeTenM

346 posts

79 months

Thursday 19th December 2019
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urquattroGus said:
Thanks, did you sell to a guy in Scotland? I was talking to him about his highly modded car, sounded interesting.

Carbon airbox is tempting although Evolve apparently won't map a S50 anymore, only person in the UK is Wayne at Chipwizards apparently.

I'm also a bit unsure about going for Alpha N as I've read it can be bad at part throttle/not as drivable as you lose the MAF.

Trying to mod her but without compromising usability smile
Ah right where did you talk to him, he was from up north somewhere had to get a boat or something and trek all the way down to me. His dad came with his Lotus Carlton!
I had it repainted in Interlagos Blue. Don't think he has done many miles since I sold it to him. I've only got back in a BMW since selling it a low miler LCI M6 V10 which wont be going anywhere for a long time lol

Keep eye on German ebay for a nice carbon box, I am sure someone can map it. Try BWChiptune and EndTuning, he used to be on BMWOwner.com/E36Forum when I had my E36 and knows his stuff.






https://streamable.com/46h2o

Edited by VeeTenM on Thursday 19th December 19:40

TR4man

4,168 posts

139 months

Thursday 19th December 2019
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Why, oh why, did I not buy one of these when they were £12k?

Zarco

13,772 posts

174 months

Thursday 19th December 2019
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TR4man said:
Why, oh why, did I not buy one of these when they were £12k?
Yep banghead

Love your garage OP.

dalecan

265 posts

216 months

Sunday 22nd December 2019
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I had to sell my 2000 Estoral blue MCoupe when i moved to the USA in 2008. I sold it for 13k and she Had less than 50 thousand on the clock. I wish I could’ve kept her, great car.

Driver Rider

561 posts

162 months

Tuesday 24th December 2019
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To the OP! That car is beautiful. I hope your enjoying it!

urquattroGus

Original Poster:

1,469 posts

155 months

Wednesday 25th December 2019
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Thanks for the positive comments guys!

Still enjoying driving her about inc including picking up the Turkey and wine shopping yesterday, the pratical hatch etc.

Then somewhat amusingly I picked up my 89 year old Granny and took her to church this morning her comment "you like the sound of the engine in this one then" after extending it briefly. She also appreciated the heated seat.

So fun but so usable so far.


DjSki

1,164 posts

160 months

Tuesday 31st December 2019
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I had one of these for a couple of years, interesting car, found it practical too (had the BMW rack for my bikes and took it camping) but its still a bit bloated, no? Not exactly light. Think mine (with sunroof) was over 1460kg.

urquattroGus

Original Poster:

1,469 posts

155 months

Wednesday 1st January 2020
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DjSki said:
I had one of these for a couple of years, interesting car, found it practical too (had the BMW rack for my bikes and took it camping) but its still a bit bloated, no? Not exactly light. Think mine (with sunroof) was over 1460kg.
Fair comment, but it feels lighter on it's feet than the weight suggests.

The S50 engine is a cast iron block and then I guess adding a roof to a roadster means you have the extra bracing weight of the roadster plus the roof.

For the first few days I struggled to park the thing properly, it's so short in length seemingly and yet with wide hips!

Mr Tidy

13,824 posts

92 months

Friday 3rd January 2020
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Your car is stunning OP. thumbup

If a Z3M Coupe had been in budget I might have been sorely tempted, but as it wasn't I ended up buying a Z4M Coupe a couple of weeks ago. laugh

It doesn't feel bloated, although according to BMW it's 1,495kg. Still with an S54 engine it gets going pretty well!

Looks like you have started your project around the same time as me. I'll be looking out for updates. thumbup



Edited by Mr Tidy on Friday 3rd January 00:05

urquattroGus

Original Poster:

1,469 posts

155 months

Friday 3rd January 2020
quotequote all
Mr Tidy said:
Your car is stunning OP. thumbup

If a Z3M Coupe had been in budget I might have been sorely tempted, but as it wasn't I ended up buying a Z4M Coupe a couple of weeks ago. laugh

It doesn't feel bloated, although according to BMW it's 1,495kg. Still with an S54 engine it gets going pretty well!

Looks like you have started your project around the same time as me. I'll be looking out for updates. thumbup



Edited by Mr Tidy on Friday 3rd January 00:05
Thanks Mr Tidy!

I was tempted by a Z4M too but I stretched to get a Z3M as I just love the old school charm.

The lure of the S54 and the way the Z4M looks from behind were a temptation!

I'll try and update things as I go along smile

987Monkey

41 posts

66 months

Friday 3rd January 2020
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I do love these cars, great choice!

urquattroGus

Original Poster:

1,469 posts

155 months

Sunday 5th January 2020
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Jobs Done So Far:

  • 4 New Michelin Pilot Sport Tyres
  • New Genuine Gearknob to replace the slightly worn old one(love how the M logo lights up on these)
  • New Throttle Cable to replace the old stretched one gaining seemingly 30-40bhp.
  • Changed the Gearbox oil and it now goes into reverse a lot easier and the shift is a bit smoother. Filled with Amsoil MTF Fluid.
  • Replaced the Viscous fan clutch as it was on its way out with signs of play/vibration and didn't have much sign of drag from cold.
Jobs still to do:

  • Change all aircon and aux belts, along with hydraulic belt tensioner and all idler pulleys (the existing ones have an intermitant squeak). Have ordered a full set of Gates Tensioners and belts.
  • Replace worn seat bushings, a common fault on these. The seats rock back and forth under heavy acceleration or braking. Only £12 worth of bushing parts to fit, but seats have to come out.
  • Fit braided clutch line that removes the clutch delay valve, gives a more natural feel to the gearshift I'm told.
  • Rear wiper activates but doesn't work, need to investigate.
  • order and fit H&R anti roll bars
  • order and fit different rear exhaust boxes (probably) and or X pipe.
  • perform Vanos diagnostic check with emulated BMW DIS software, have ordered lead and software.
  • take sill cover and wheel arch liners off to double check for corrosion. (!)
And mostly, drive and enjoy it as much as I can! Done 700 miles or so since I got her.

Dr Nookie

192 posts

165 months

Sunday 5th January 2020
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Nice one, enjoy it matey.
Ours is a firm member of the family now - the kids love it.

Think about joining us at Silverstone Classic if you fancy it.

urquattroGus

Original Poster:

1,469 posts

155 months

Sunday 19th January 2020
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A few smaller jobs ticked off the list this weekend.

Changed the Gearbox oil for Amsoil MTF fluid, it seems to go into reverse easier now and the changes are slightly smoother.

More of an improvement was replacing every tensioner and bearing in the aux belt and air con belt, these were pretty noisy. You could tell they were we past best as the one ones spun more freely and had a gritty feeing.

I also replaced the Power Steering pump pulley as someone had damaged the edges of it, no doubt when fitting a new pump.

Also check for play in the water pump, seemed to be next to none. Plan to change the pump and thermostat along with a few hoses in the near future as preventative maintenance.

Ordered a full set from Gates which to me seem every bit as good as what you buy from BMW at a more sensible price.



Edited by urquattroGus on Sunday 19th January 21:30

Mr Tidy

13,824 posts

92 months

Sunday 19th January 2020
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Some good progress made then!

But as a serial BMW owner I would expect the gearchange to get even better once you've removed the CDV. thumbup

urquattroGus

Original Poster:

1,469 posts

155 months

Monday 20th January 2020
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Mr Tidy said:
Some good progress made then!

But as a serial BMW owner I would expect the gearchange to get even better once you've removed the CDV. thumbup
Yup need to get on and do that. I've soaked the hose ends in plus gas penetrating fluid, always a bit scary undoing brake or clutch hose ferrules on a 20 year old car! Never enjoy bleeding stuff either... Should be simple enough hopefully, keen to try it as sometimes I've felt my gear change was fine but I was just a bit too quick and the clutch came back in slowly...

Got to consider my exhaust options too.

Supersprint, Eiesmann or Hayward and Scott.

Think I might ask Hayward and Scott for a set of their back boxes but also ask them to fab up an X pipe to replace the standard H pipe.

I also tried a Simota induction kit (like a gruppe M) but quickly took that off and re-fitted the stock airbox. The car felt like it lost torque and didn't run as well, slightly free-er at the top end but not worth it. The deciding factor was that the induction sound i hoped I'd get wasn't really there, obviously not a patch on the full carbon airbox route, but i'm also not sure about that because it's a lot of money and then it means an Alpha N remap which can mean it's not so good a part throttle and might struggle to pass emissions tests.

Trying to make subtle improvements and keep her mostly standard.