Stuart Little (2007 E85 Z4 2.5si manual)

MR_Y

Well-known member
Mega update....

Work done:

A day after taking delivery of the car from the dealership, the car was booked in with 357 for a full assessment. After their report, I agreed to get the major and medium level issues all fixed. The low priority issues will be tackled next year. I was keen on replacing the clutch and flywheel, given the car being 16 years old, but decided to budget for that later - it is still performing well and the workshop didn't note any issues when driving it. I also decided to live with manual locking/unlocking and no CD changer (it worked once but jammed and stopped working entirely). If you are keen on an E85 (non M) and want the full rundown of all work done, drop me a DM.

Valet:

357 were kind enough to add on a valet at a decent price after the work was done. Full interior deep clean and exterior polish. That weird smear on the passenger seat has disappeared and the leather now looks great for a 16 year old car. I declined ceramic coating, given that the paint condition is not 100 perfect and that added cost is not warranted. Anyway, white cars look good with minimal care. Paint touch ups may be on the cards in the future, if budget allows.

Niggles:

- There is a cubby between the seats. The light switch there has broken, so it stays on even after closing the cubby. A bit of Prestik has solved the issue, by jamming the switch to make contact to switch off when closing.
- The above mentioned CD changer and remote locking are both not working, but I don't care to fix them.
- The driver floor mat catches the stopper under the clutch pedal. I chucked out the mat and I may look for a replacement in future.

The Drive:

Even after all the suspension work done, new shocks, control arms, Eagle F1 non RFT tyres, alignment, etc., there is still a numbness/vagueness around centre point when driving at high speed in a straight line on the highway. No wandering, pulling, vibration. Just a numb/lifeless feel that does not instill much confidence when pushing higher speeds. A Google search shows that this is a common issue with the non-M E85, since the 2.5 and 3.0 cars have early technology electric steering. Pressing the Sport button does firm up the steering when turning, but does nothing to add feel to the centre point at higher speeds. At first, I was disappointed, but after some driving on the highway, I got to accept it and is not really a deal breaker because this car is not going to be used as a long distance, high speed cruiser.

The car really comes alive when tackling winding back roads. When turning the steering in Sport mode, it adds more weight, that helps you feel (even if it is artificially) what is going on with the front wheels.

Comparing the drive to my 2013 981 Boxster (that thread is elsewhere on this forum: https://www.bmwfanatics.co.za/threads/2013-981-boxster-pdk.92475/):
- Even though the Boxster is a newer generation car, its size and style is similar, though it has a DSG instead of manual box and is mid engined.
- The 2.7 Boxster boasts better power and torque figures (195kw vs 160kw, 280Nm vs 250Nm), but the 2.5 Si Z4 produces peak torque lower down (2750-4250 rpm vs a high 4,500-6,500 rpm) and this makes the Z4 feel sprightly in traffic situations, even with a manual box. You will note in my Boxster thread from 2020, that I complained about lack of low down torque and how 1.0TSI Polos used to pull ahead quicker in traffic conditions. The 2.5Si has no such problem - the torque is easily accessible low down and the gearbox/clutch are easy to use to enable quick getaways. However, when pushing higher speeds, the Boxster is better and pulls stronger at higher revs.
- The mid engined Boxster is way ahead of the front engined Z4 in terms of handling poise and steering feel. However, is a 981 base Boxster really 4x better than an E85 Z4 2.5Si to warrant that 4x price difference? No, however a 987 for around 2x the price may be worth it, if budget allows (noting that maintenance is not as pocket friendly as BMW aftermarket).
- While not driving-related, the spec on the Z4 easily blows away that of the 981 Boxster. Auto dimming mirror, full leather interior, electric seats with driver side memory, awesome sound system and tyre pressure monitoring system. Also, the E85s seats are comfier overall over the standard 981 seats.

Fun factor:

The car is very chuckable. It has just enough power to enjoy yourself without losing your licence. The gearbox is a pleasure to use and that ZHP gear knob is a worthwhile upgrade.

The 6 cylinder motor sounds good when pushing it. I decided to keep the exhaust stock - it delivers a nice sound. Spending more money is not really worthwhile, for now at least.

I am happy with the car. It does what it needs to do. Apart from the dead steering at straightline high speed, there is little to fault on the car. With prices of the prefacelift E85 2.5i (5 speed, 141kw) creeping up, it bodes well for this LCI 2.5Si future resale value.

Here are some updated pictures.

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MR_Y

Well-known member
A real garage queen... happy miles ahead bud
Thanks man.

I will use it 3x a week and hope to attend the next BMW Club skidpan event. Though, with a 16 year old clutch, I will certainly take it easy.

I decided to use 357 for all maintenance and routine service work going forward. Work is top notch.
 

TBP88

Well-known member
Considering the price point,the Z4 range really is hard to beat smiles/R, the non-M cars are pretty cheap to run and still a decent hoot. The M cars are epic, probably as fun as stuff that's 3-4x the price. Glad you've found a sweet spot for a fun toy!
 

MR_Y

Well-known member
Considering the price point,the Z4 range really is hard to beat smiles/R, the non-M cars are pretty cheap to run and still a decent hoot. The M cars are epic, probably as fun as stuff that's 3-4x the price. Glad you've found a sweet spot for a fun toy!
Agree.

Also buying a cheapish sports car means that you don't have to be too precious about it. A little ding here, a scratch there, all adds to the cheap sports car character 😁

I still aim to keep her in good condition, but I am not sweating over the little stuff.

Today, I got a little ding from another car that opened its door too wide in the car park. On my Cayman S, I would be furious. On this car, no sweat (it adds to the existing assortment of little imperfections).
 

FILV

Well-known member
Always eye'd these out as a little Sunday Coffee run car and perhaps a trip up and down Golden gate National park cruiser

Love the updates, look forward to what the future keeps in stock for it.

As for the ding, i would ahve freaked out. MY F25 only goes to the office, gym and home. And yet every month a fresh ding due to someomne opening their door... and i park the furthest possible bay where no one parks. Maybe if we stop caring then the dings will stop? lol
 

MR_Y

Well-known member
So, with flexibility in my work starting times this week, I am dailying this car since I can avoid the usual morning rush. As a daily, this car actually performs pretty decently.

I was stuck on the M1 in bumper to bumper traffic and I was not bothered. Dropped the roof, cranked up the radio and flipped between neutral, 1st and 2nd gear with ease.

I guess the novelty of dailying the car will fade in time, but for now the open top driving is great, especially with this warm spring weather.

I also drove the car at night. The standard halogens (height adjustable) do a very good job of illumination. Much better than the halogens on my 2013 981 Boxster.

I did see some mild condensation on the inside of the front fog lamps. Seems that this is a common issue with the E85 LCI (the pre LCI had straightforward, small round lamps, the LCI has large rectangular housings that allow moisture to get inside).

The headlights themselves are in excellent condition. The lens covers are scratch free and the inside has no condensation.

I am also very happy with the red interior back lights on the instrument panel and the little red light that illuminates the gearshift. Looks very classy and sporty.

The fabric hood has been treated with the Porsche waterproof spray. Water rolls off beautifully. The hood was scrubbed clean by 357 before the spray was applied. No issues.

Sport mode is interesting. I don't feel a difference in throttle response, but the steering does load up a bit. I am getting used to the the dead centre point and it is less of an issue now.

The Eagle F1s feel very good but need a proper workout session to feel their performance at the limit.

Similar to my Porkers, the car does attract attention from onlookers. More so from car guys, who are quick to strike up a conversation. I am also quick to explain that this is an 'si' and not an 'i' and that it has more power and and an extra gear. I also get the inevitable question, why didn't I get the 3.0 :)

At the back of my mind, I am preparing for something expensive to break (not likely though, given the amount of work done ao far), but in the meantime I am driving it as much as possible to get full satisfaction.

Average fuel consumption (based on daily driving, weekend blasting and all in Sport mode) is around 13.5 litres per 100km. Not bad. When the daily novelty wear off, it will be weekend only and consumption may improve since all open road driving.
 
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MR_Y

Well-known member
Some pictures...

Parked next to a Mazda MX-5 ND gen.
The pictures don't tell the full story.
The ND gen is significantly shorter (lengthwise) than the E85.
It also has slightly higher ground clearance.
Looking at the licence disc, the ND is about 200kg lighter than the E85.

I drove the ND a long time back and the older NC more recently. From what I recall, they felt more chuckable and lightweight (NC had more body roll), but a bit cramped inside vs my E85. The E85, while a lard arse, does have that Germanic heft to it, which adds to the feeling of stability. However, I can see the appeal of a lightweight, small roadster in the right road conditions.

With the used prices of NC and NDs being bloody strong, the depreciation heavy E85 non-Ms make a good buying argument (ignoring unexpected maintenance, etc).



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I found out today that placing hot coffee in this cupholder is a bad, bad idea. While the cupholder holds the cup tight, driving over any mildly bumpy roads, sends hot coffee spilling everywhere. Hot coffee on the knee is part of the roadster experience:)

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Red dials at night look great. BMW knows how to make great analogue dials.

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MR_Y

Well-known member
Got a burning clutch smell in traffic yesterday (on flat ground, when stopped at traffic lights). I am very sympathetic to clutches (use handbrake on hills, no race launches, etc). The clutch has never been changed, so 16 years is a decent innings.

However, I was driving top down behind an old bakkie, so not sure if I picked up that vehicle's clutch smell. Anyway, the smell lasted a few seconds and disappeared. I tried taking off in 5th gear later to see if there was slip, but it stalled (which I assume means its fine?)

Anyway, the car is off to mechanic for rear shocks (was on back order) and I will ask them to check.

Update: checked and no issues found. Will monitor this and see if it comes up again.

Also asked them to check the slight rev issue on cold start (as posted elsewhere) and nothing major came up. Will monitor this as well.
 
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FILV

Well-known member
I had a good chuckle at the cup holder. Nothing more exciting than going all out in a corner, only to have boiling coffee trickle onto your thigh mid corner lol

I remember there was old Topgear episode where they reviewing a Bmw from this era, and Jeremy commented that he thinks the designers did it on purpose as a sinister joke to purposely burn the passengers leg mid corner.

Interestingly just looking at the MX5 it looks lightweight, and the Z4 heavier and sturdier or more robust.
 

///M Individual

Well-known member
Got a burning clutch smell in traffic yesterday (on flat ground, when stopped at traffic lights). I am very sympathetic to clutches (use handbrake on hills, no race launches, etc). The clutch has never been changed, so 16 years is a decent innings.

However, I was driving top down behind an old bakkie, so not sure if I picked up that vehicle's clutch smell. Anyway, the smell lasted a few seconds and disappeared. I tried taking off in 5th gear later to see if there was slip, but it stalled (which I assume means its fine?)

Anyway, the car is off to mechanic for rear shocks (was on back order) and I will ask them to check.

Update: checked and no issues found. Will monitor this and see if it comes up again.

Also asked them to check the slight rev issue on cold start (as posted elsewhere) and nothing major came up. Will monitor this as well.

Doubt it was your clutch smell as it would have lingered around for longer.

Z4 looks way better than the MX5 and I'm sure the 6 pot makes up for the weight and nimbleness differences.
 

TBP88

Well-known member
Ask any Z4 owner whether the cup holders even saw use. Had mine for 6yrs? Never once did a cup go into that flimsy plastic thing.
 

MR_Y

Well-known member
Random updates....

Car qualifies as a modern classic. I changed insurance to a company that specialises in this area and very happy with the valuation.

In other news, the average fuel consumption has dropped from 13.x to 12.0 litres per 100km. Driving in Sport and pretty hard, so no complaints.

I heard a small clunking noise when driving slowly in the carpark and accelerating slightly. Seems like knocking noise that just happens once you accelerate a slight bit while the car is doing low speeds in 2nd gear. Googling reveals that this could be a propshaft issue. Though, the car still drives fine and I don't feel the wheels grabbing/stuttering. Anyway, will ask workshop to check it. Hopefully it just requires a regreasing.

Everything else is pefect. The condensation in the fog lights has mostly disappeared after driving with the fogs on.

My CD changer is working faultlessly and is crammed with old CDs from the 00s.
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I found a nifty feature where the central cubby locks when you lock the car. This means you can lock the car with the roof down and the cubby is automatically secured.
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Little comfort touches are welcome in traffic. Padded armrest by gearlever and padded centre console knee area.
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Gearknob is a pleasure to use
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TBP88

Well-known member
Looking good. I had CD changer as well and it could take MP3 CDs. so if you can source a CD writer and do some CDR with MP3 on them you'll be good to go with a good few hundred songs per CD.

Glad you're enjoying the ride!!!
 

rodga

Well-known member
:ROFLMAO:
Going to code it this evening and report back here how long it lasts this time
So bit of an update....

Did the coding and it lasted till about last week, the car was just parked during the school holidays, so it probably has something to do with being off for extended periods?
 

MR_Y

Well-known member
So bit of an update....

Did the coding and it lasted till about last week, the car was just parked during the school holidays, so it probably has something to do with being off for extended periods?
My remote works.
I found out that the battery needs replacing.
The old fashioned keys have the battery soldered in, so it is a mission to replace
 

MR_Y

Well-known member
Looking good. I had CD changer as well and it could take MP3 CDs. so if you can source a CD writer and do some CDR with MP3 on them you'll be good to go with a good few hundred songs per CD.

Glad you're enjoying the ride!!!
Thanks.
I use the Aux input to stream my music from phone.
The CDs are just my old CDs from back in the day :)
 
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