Recommission Project - Was it a good idea..

Be warned - long story!

Not so long ago I found myself looking for a summer toy, and ultimately settled on a Z4. I had looked at an MX5, 350z and a string of Mercedes but the Z4 felt more sensible and less hairdresser. The car was advertised online for just one evening before I had parted with the cash, advertised as a non-runner, having not moved for 3 years, no MOT, and a failed steering motor. This low mileage, 3.0ltr, manual, with a working roof and M-Sport seats example, started first time from cold, with no odd noises, no smoke, no leaks. She also has a stack of history, which evidenced no expense had been spared for the majority of its life, with limited use via the current owner. Taking the car on face value, we keenly loaded on to the transporter and off she went to a local specialist for a recondition.

The specialist was given instruction to give the car a full check over, prep for and then fit the new steering motor, service and MOT, expecting to cost around £1000. In the back of my mind, I expected to need a braking system refresh, or an odd leak here or there that we would have to deal with... but it was much, much more than that... grab yourself a brew, and settle in for a story.


1. During the visual inspection, water was found in the passenger footwell, this rang alarm bells for us, considering it had a documented roof motor replacement in recent years and was working fine. A water test was carried out with no obvious signs as to where the leak was coming from, so out came the whole interior. With the interior out, we identified water ingress around the front wind shield, so this was removed. Upon inspection, it was evident that the rubber seal around the screen had a top to bottom cut in it, leaving the window poorly fitted and water was able to freely enter the car. The decision was made to replace the rubber seal and fit a new windscreen to guarantee the work. I am pleased to say this did stop the water ingress, but at great expense in time and labour.

2. In conjunction with issue 1, a diagnostics check identified a few issues, one of which was with the air bag system. The initial fear was that the entire airbag sensor system needed replacing at the cost of £1500 for BMW original parts. Thankfully, only one sensor needed replacing. On inspection, it was apparent that water had got into the passenger satellite sensor, raising a fault. This sensor has now been replaced and coded to the car, fixing the fault. I could not leave this alone.. surely the airbag warning light would have been present prior to purchase... so, the speedo cluster was inspected, and sure enough, the airbag light had been hidden.

3. The visual inspection highlighted two cracked alloys. Admittedly, this is my own fault for not checking the existing wheels correctly, at my own expense. Lesson learned as these had to be replaced. We have now fitted original Z4, used wheels, that I and the garage have inspected. The replacement wheels do look much better, so I am pleased with the result.

4. A culmination of the above has needed various other parts and ancillaries. Some essential and some my own doing to ensure the job was completed correctly. The essential minor works included the replacement of the Air Intake Manifold Boot Pipe, which had split, leading to the replacement of the DISA valve to an aluminum upgrade. I have also had to replace a DSC brake pressure sensor.

I shall refrain from including the cost of the car in the first instance and labour costs, as this makes makes me want to question the meaning of life. The following are headline costs which may give guidance to others in the future;

£360 - Transporter
£300 - Steering wheel motor repair
£288 - Front Windscreen replacement
£37.99 - Air Intake Manifold Boot Pipe
£40.89 - Aluminum DISA Valve Upgrade
£300.00 - Passenger Airbag Satellite Sensor
£600 - BMW Ellipsoid Alloys Wheels
£250 - Service
£40 - MOT
£40 - ABS DSC Brake Pressure Sensor

So, the question is, why take the risk and why commit a small fortune to a common car. Unfortunately, the car now owes me more than it is worth, which is often the way with our hobbies I suppose. I am comfortable in the fact that I have ensured the car has been commissioned to a very high standard, albeit at considerable expense. It is evident some issues with the car were hidden from me, and cost ££££s to correct. If the issues were known in the first instance, we would have spent less time chasing faults, saving money, time and stress. Honest sellers are becoming harder to find, please consider the consequences when hiding faults..

Should I have sold and cut my losses, should I even share my experience? This act would have lumbered someone else with these issues, continuing the cycle, which is not what I wanted and the car deserves better considering they are getting rarer and rarer. I have weighed up the costs and taken the opinion that cars cost money each and every year to run and maintain. In this instance, I have had all the costs in one hit, giving the appearance of a poor deal. This may be a way of finding the bright side of the situation, but I could have spent more money on the initial purchase and still have faults to fix.

In summary, the whole process has taken a month. Much time and money has gone in to the recommission, unexpectedly. I am pleased this car has been completed properly with no expense spared. The car has had a thorough go over, and is in fantastic condition despite all of the above. I fully expect forum members to question my motives, as I have personally done, and I hope this little insight can provide others with guidance. Those who have helped me to this point have my thanks. There is still more to do, such as a suspension refresh, sound system upgrade, but this is the fun stuff.

Was it worth it........ I dunno, I haven't driven it yet!!!! :headbang:
 
£600 for alloys seems dear you could have gone for something a lot cheaper off the forums. I'm sure someone was asking £150 for a set
 
Good for you! The first time you drive it you will realize all the $$$ and time worth it. The truth is we only have one life to live. Post pictures when able.
 
Thank you for sharing your experience. You have a low mileage 3 ltr with M-sport seats now, which despite being somewhat a money pit in the beginning, is a sought after platform after all. Expect to spend some more on VANOS refurb, suspension etc., but if you have the time and guts to try to do them yourself, there’s plenty of advice and helping hands on the forum and the expenses can be tolerable.
 
I think the lesson here is - don't embark on a recommissioning project unless your emotionally invested. Doubly so if you have to pay someone else to do the work...
 
SonnyA85 said:
£600 for alloys seems dear you could have gone for something a lot cheaper off the forums. I'm sure someone was asking £150 for a set
There’s alloys and alloys. Sure, daisies are cheap but ellipsoids are possibly the most sought after OEM. £600 for a quality set with tyres ain’t bad.
 
Zedebee said:
SonnyA85 said:
£600 for alloys seems dear you could have gone for something a lot cheaper off the forums. I'm sure someone was asking £150 for a set
There’s alloys and alloys. Sure, daisies are cheap but ellipsoids are possibly the most sought after OEM. £600 for a quality set with tyres ain’t bad.

Fair enough. I was just pointing out he could have easily saved money by going after a cheaper set. They do the same job just some find some styles more aesthetically pleasing, one person's dream alloys is another guys nightmare. The cheaper alloys tend to actually provide the best comfort as they are smaller so you can run higher profile tyres. I personally would have taken the opportunity to downsize for comfort reasons over aesthetics saved money too which is a win/win.

Saying that when I did buy new alloys I got 224's which a re the same size as 108's but that's because I got them for a steal.
 
Be nice to see pictures of the finished article, look on the bright side you saved a Z4 from probably a grim end :thumbsup:
 
It sounds like it was a drawn-out, time-consuming and expensive process, but at least you now have a car that is fully sorted - and as has been said you've saved a Z4 from an uncertain future. :thumbsup:

And we'd love to see it now!
 
Well done for sticking with it. Now enjoy a car in fine shape.

I use man-maths : ANY 15 year old car will take work and some money to get it as you like it, or you could buy a newer car with fewer problems and take the depreciation hit.
 
You asked for pictures, here they are.

It has been an experience from the start, from the first day on the loader. This car has had a full bill of health, literally being stripped naked and rebuilt on the inside.. All the while, in good company.

I have now driven the car and I do quite like it. The project will continue with a suspension overhaul and roof motor move on the cards very soon.

Of course I shall keep you posted
 

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Those first few pics with the naked cabin certainly look interesting.

I'll be converting my chrome grill to all black soon. I'm thinking now I possibly should have gone for Chrome surrounding with black grill.

Definitely looking great now. You will just have to use it regularly to get your money's worth out of it now
 
SonnyA85 said:
Those first few pics with the naked cabin certainly look interesting.

I'll be converting my chrome grill to all black soon. I'm thinking now I possibly should have gone for Chrome surrounding with black grill.

Definitely looking great now. You will just have to use it regularly to get your money's worth out of it now

Agreed. It is what it is. If I hated the first drive then I suspect the conversation would be different.
 
That looks good though, I would be a bit annoyed that someone has deliberately covered the airbag light - that is simply fraud.

Those wheels are the best for that generation, really like them and I got the same at the time.

How much did you buy the car itself for?
 
pvr said:
That looks good though, I would be a bit annoyed that someone has deliberately covered the airbag light - that is simply fraud.

Those wheels are the best for that generation, really like them and I got the same at the time.

How much did you buy the car itself for?

Well, I thought it was a bargain price. Which it was. But I have spent double putting it right. It now owes me more than its worth, so numbers have little meaning at this point. Im invested.

It has only done 78k so I can get the use out of it.
 
z30Norfolker said:
pvr said:
That looks good though, I would be a bit annoyed that someone has deliberately covered the airbag light - that is simply fraud.

Those wheels are the best for that generation, really like them and I got the same at the time.

How much did you buy the car itself for?

Well, I thought it was a bargain price. Which it was. But I have spent double putting it right. It now owes me more than its worth, so numbers have little meaning at this point. Im invested.

It has only done 78k so I can get the use out of it.

mileage isn't really that important on a car when it gets to a certain age. What matters is build quality and how well its been looked after and maintained and serviced. however no matter what you do electronics aren't built to last very long that's why modern tv's don't last as long as older tv's with less electronics (less to go wrong). before you could get 20-30 years out of a tv no bother. these days some don't even last 5 years and majority start failing within 10-15 years. luckily the z4's only major weak points are the power steering and roof motor. once you get the EPS remanufactured and the roof motor relocated it's only minor niggles and usual upkeep and maintenance apart from the electronic hiccups.

i'm planning on keeping mine for another 2 years and then re-evaluating my options but chances are i could end up just running it into the ground if i don't get rid in a couple of years. parts are going to become a problem and we will see how well it's built as majority of everything underneath is rusted and seized. i noticed the heat shield at the back was just held in place by whatever it was meant to be deflecting heat from rather than the original bolts when i was under it trying to sort my drains out.

enjoy the car and use it as much as you can but old cars will always need money spent on them. especially a 20 year old car.
 
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