Montego Blue Z4 Coupe

Birr97

Member
Posted on Pistonheads, thought I should post here too as well.

Here's my 2006 BMW Z4 Coupe (at Elan Valley in 2022).
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I bought it on the 8th of February 2020 at around 90,000 miles from a well known Pistonheads and Z4Forum member.

It's Montego Blue with Pearl Grey leather seats, Cirrus Aluminium interior trim and a manual gearbox.

I travelled from South Wales to the Reading area to pick it up.
I looked into a number of different cars before buying it, such as the Civic Type R FN2, MX5 NC, MR2 MK3 and the GT86/BRZ, finally settling on a Z4 after realising I wanted something with more than 4 cylinders, plus the price to performance and looks were difficult to beat.

I fell in love with it as soon as I pulled up and seen it, it looked a bit sad next to it's Z4M Coupe replacement however.

I still remember how nervous I was driving it for the first time, peering over the massive bonnet, nearly double the power of my car at the time (Celica VVTi MK7), rear wheel drive and with the owner in the passenger seat.

It drove brilliantly on the test drive but It was an absolute pig to drive home, the M4 plus runflats are a terrible combination, it skipped across imperfections and it tramlined all over the place.
First change: Michelin PS4 tyres and a flat tyre kit.

Unfortunately I haven't got any pictures from around the time I bought it, apart from this one I took through a dirty window at work a few days after buying it.
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In March 2020, my partner and I were planning a trip to the Midlands, we were set to go on the 18th, just as the UK was starting to see Covid-19 as a serious issue.
After a lot of umming and ahhing, we set off, with no idea if we were to be stranded somewhere A. due to lockdowns or B. due to breakdowns.
The main destinations were West Midlands Safari Park, Coventry and then on to Stratford upon Avon for another night's stay.

Here's how I'd rank how civilised these places are:
1. Stratford upon Avon, 2. West Midlands Safari Park, 3. Coventry
I knew Coventry would be rough, I tried to dissuade my partner but it was of no use.

The highlights of Coventry were:
Eating McDonalds in the hotel room, a side lamp that switched on when you got on the bed, and going back to my car in the morning to find one of Coventry's inhabitants had poo'd behind it.
Oh well, at least it wasn't on the car.

It was surreal being out during the Covid scare, there were only us, the animals and the staff at the Safari Park.
Between Covid and the rain, there were no queues for the rides, with just my partner and I on them.
The staff kept themselves busy by literally sweeping puddles!

Stratford upon Avon was much the same, the weather was better but there was hardly anyone around.
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I managed to get in a visit to Caffeine and Machine, though there wasn't much of an atmosphere due to the circumstances.
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The Z4 performed brilliantly and had proved reliable, with only the odd whining noise from the passenger side.

Between then and 2023, I've done another trip to Stratford up Avon, a couple of trips to Tenby, a trip to Cornwall (a very long drive) and plenty of drives out in Mid Wales.
It's a good all-round car, It's got decent performance and a big boot for what it is.

Not had one issue but I have done a lot of maintenance on it (Covid was a blessing and a curse).
Since I bought it:
93,023 - Oil Service - 11/07/20
95,755 - New Battery - 13/10/20
98,669 - "Inspection 2?" - fluids, filters and spark plugs" - 02/04/2021
Water pump, thermostat and expansion tank changed same time
99,268 - Ignition Coils x6 replaced (preventative maintenance)
99,285 - Calipers, pads, disks and brake fluid changed - 18/04/2021
103,253 - Suspension refresh (Front control arms, tie rods, ARB link rods, Suplex springs and Bilstein B4 shocks front and rear) - 05/11/2021
This made one hell of a difference, massive improvement in comfort plus handling!

104,065 - Oil Service (plus oil, air and cabin filter) - 24/06/2022
106,465 - "Inspection 1?" - all filters (including cabin again!) plus fluids under bonnet - coolant Flush, Brake fluid flush. - 09/04/2023
I changed both DISA valves, both Vanos solenoids, the CCV and associated pipework in that time, also got underneath it to paint and treat it to keep it looking good.
Fixed leaking door membranes at some point too.

Apart from that, the only changes were a Maxton lip spoiler in 2021, removal of the front number plate surround and fitting of new plates, plus a full set of Goodyear Eagle AS5s were fitted in 2022 due to a puncture in the rear and getting a really good deal.

Random assortment of photos:

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Fixed leaky door membrane with new butyl tape, reinforcement with a lot of duct tape.

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CCV replacement, inlet manifold out.

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Exhaust got some protection too...

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Part 2 of the post...

I'd been interested in track days for a while, and having been to Prescott Hillclimb in my Celica twice I decided this year to book a track day at Llandow.
Also somehow managed to convince two friends to bring their MX5s as well.

Here's some videos of that:
[youtube]A277VWWp104[/youtube]
[youtube]6p5ZSDSeizQ[/youtube]
Quite a big oversteer moment!

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That's what I get for wishing the Z4 would rotate like an R56 Mini...

Went pretty well on the whole apart from the two big-ish oversteer moments, open diff and lack of skill to blame for those!

Really enjoyed being able to use the performance of the car and feel the balance and grip limits in the corners, again the car performed brilliantly apart the brakes going soft a few laps in to the day due to a bad bleed by myself - lesson learned - don't use those "one man" bleeder bottles.
That was sorted with a Sealey Pressure Bleeder.

I also killed my front tyres, I was having too much fun and stayed out on track too long.
Luckily had a spare set of PS4 tyres for the front in the shed to tide me over.
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How it currently stands:
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It's on a square set up - 8x18 inch 2Forge ZF6 wheels, ET33 offset with Goodyear Eagle F1 Supersports in 235/40/18.
Only had a a quick drive locally but it feels great, the wheels are so much lighter than the type 295 wheels that were on there.
Weight difference is around 4kg per wheel so a significant change, feels much dartier and more responsive.

I love the look of the type 295s but they were in need of a refurb, I also wanted lighter wheels and to try a square set up.
Very interested to see the difference as I have another day at Llandow booked in September.

Plans are to do a few track days a year, a few roadtrips and just enjoy it for what it is.

No major modifications planned but these are on my list of things to do:

New BMW center caps for the wheels
Repaint the brake calipers
Lanoguard underneath
Valve cover (plus valvetronic), oil filter housing and sump gasket
Serpentine belt plus tensioners
Fit a limited slip differential
Fit lighter seats, either aftermarket or manual Z4 Sport seats as the electric ones weigh a ton.
Figure out what to to with the paintwork, showing it's age a bit now and the front wings have some rust...

For myself:
Some kind of car limits training

Thanks for reading if you've made it this far, hope to keep updating this as time goes on.
 
Did the Lanoguard all go on ok? I expect I will go down this route in the near future after a suspensions refresh / clean.
 
Kenich said:
Did the Lanoguard all go on ok? I expect I will go down this route in the near future after a suspensions refresh / clean.

I haven't used it yet, those photos were from 2 years ago where I painted the brakes, wheel arches and rear subframe. Sprayed Dinitrol wax over the top of it then.

I was hoping to use Lanoguard this year but I've just been given a load more Dinitrol so I'll be trying it next year by the look of it.
 
Birr97 said:
Kenich said:
Did the Lanoguard all go on ok? I expect I will go down this route in the near future after a suspensions refresh / clean.
I was hoping to use Lanoguard this year but I've just been given a load more Dinitrol so I'll be trying it next year by the look of it.

ah fair one, it looks fresh under there which is nice to see. I haven't used either, but before I have used Bilt Hamber products, which have been great.
 
Birr97 said:
It's Montego Blue with Pearl Grey leather

Nice write up :thumbsup: Montego Blue / Pearl Grey Leather and Black wheels are a great combination but then I would say that :)
 
That was a good read, OP. Coupe looks lovely and great to see it being enjoyed :thumbsup:
 
That's a great write up on a great looking car, and it's good to see you are still enjoying it after more than 3 years. Good luck with your future plans for mods and track days. :thumbsup:

BTW if you still have the 295 wheels someone on here was looking for a set fairly recently.
 
Thanks all, didn't expect anyone to read it to be honest.
Got a bit carried away so it's a bit longer than it should be.

I will be advertising the style 295 wheels too, I'll see if that person is still looking for a set.
 
Just a minor update:

Sold the Style 295 wheels to a member on here.
They attracted a lot more attention than I expected and sold very quickly, now been sent off.

Excuse my garden, that's another work in progress.
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Heard a rattling from the OS/F of the car today, dust shield for the disc has corroded around the bolts.
Temporary repair enacted by cutting the short end of a small L bracket off and fitting the long piece as I didn't have an appropriate washer, I think it looks pretty good.
:rofl:

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Another thing for the to-do list; source set of reasonably priced dust shields, cut a section out of them so I can fit them without removing the hub/wheel bearing.

On a brighter note, finally figured out how to use NCS Expert today, coded out the infernal beep on lock/unlock so I can get in and out without announcing it to everyone within a half mile radius.
 
Brilliant report on my favourite kinda Coupe. Notes taken on what I need to do over the winter......loving the new wheels :thumbsup:
 
TOMGREEN413 said:
Brilliant report on my favourite kinda Coupe. Notes taken on what I need to do over the winter......loving the new wheels :thumbsup:

It's the best colour!

The wheels are slightly darker than I wanted, though not as dark as they look in the photos.
Drives so much better so I'm very happy with them.
 
It's the best colour!............ 8) ..........absolutely . I find myself weirdly mesmerised by it... :D

,
 
Did you do all the work yourself? Oh, and I'm guessing your quite close to me , I'm based near Llandeilo.
 
TOMGREEN413 said:
Did you do all the work yourself? Oh, and I'm guessing your quite close to me , I'm based near Llandeilo.

Yeah, everything done by myself on my driveway.
Really wish I had a garage with a ramp!

I'm near Cardiff so not super far.
I love that part of Wales very much!
West is best as they say. :rofl:
 
Birr97 said:
TOMGREEN413 said:
Did you do all the work yourself? Oh, and I'm guessing your quite close to me , I'm based near Llandeilo.

Yeah, everything done by myself on my driveway.
Really wish I had a garage with a ramp!

I'm near Cardiff so not super far.
I love that part of Wales very much!
West is best as they say. :rofl:
All without a ramp! By yourself! Respect :thumbsup:
 
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