BMW Z4 3.0 in need of TLC

[Rascal69]

3 weeks ago a lady from PTA got in touch with us and wanted some help with her car which was purchased a year ago. She had the car at 2 independent workshops and BMW themselves who quoted her a staggering amount to fix the car. So she asked if she could bring the car to us and have it properly checked out as a second opinion.

The vehicle was dropped off with us and we immediately got to work ...


We begin with diagnostics as the car was not seeing a lot of modules after bmw attempted to run diagnostics. Start with checking the battery , it was low so put the car on charge and get the battery up before plugging in the laptop


1st round of diagnostics show the lack of Comms to a lot of modules .


After reprogramming the abs and airbag modules we ran diagnostics again a 3rd time and now we can connect to a lot more


Also checked the fuses


And the wiring , just Incase.


Next we needed to address the coolant leak


So we started stripping the cooling system






Things were brittle and breaking




Started collecting parts for the repairs and services needed




Cooling system








Filled up with Coolant and distilled water mix


Belts, tensioner and rollers






Old belt was wearing unevenly


New parts fitted and torqued to spec


Control arm bushes worn and not seating correct


New vs old


Apply thread lock

[Rascal69]

Fitted and torqued to spec


Next we removed the prop shaft to replace the guibo and center bearing


Old vs new guibo




Split the prop to replace center bearing


Old


New


Refitted the prop shaft


Then moved onto the engine service


A lot of build up on the inside of the motor


Started with an engine flush






Shocked as we pull out the oil filter


Old vs new oil filter


New air filter


Replaced the spark plugs




Flushed and bled the brakes




New vs old fluid


Bled the lines


Once all that was done, the car was checked again and the. Ready for collection








Customer was super excited to get her car back feeling better than before...

[rodga]

Keep up the great work gents

[Rascal69]

Thanks Buddy...

[Unobeat]

Guys guys

I am loving your work, attention to detail and you thorough diagnostic system that you have in place to resolve cars issues properly.
Keep up the detailed post content coming forth, epic.

[Rascal69]

Guys guys

I am loving your work, attention to detail and you thorough diagnostic system that you have in place to resolve cars issues properly.
Keep up the detailed post content coming forth, epic.

Thanks for the kind words Mr.

[Wolfburger]

Love the attention to detail from you guys. Keep up the good work!

[Belix]

enjoyable read. Thanks for posting up!

[Rascal69]

Thanks Gentlemen

[1.8 20vT]

Top stuff. Love the attention to detail

[Rascal69]

Top stuff. Love the attention to detail

Thanks bud

[Silverbird_96Kw]

Really like how this one turned out - I'm sure she is driving like new again.

[Rascal69]

Really like how this one turned out - I'm sure she is driving like new again.

Shot Mr

Yeah its driving like a different car now... we also reset the saved user inputs on the ECU so the car felt completely different and had to relearn the owners driving style/throttle inputs... this also made it a bit more nippy too...

[MR.C]

Just for interests sake if you don't mind sharing the costs that BMW quoted her and the price that you charged.



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[Rascal69]

Just for interests sake if you don't mind sharing the costs that BMW quoted her and the price that you charged.



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BMW wanted 60k and was not going to address a lot of the issues for that massive amount .


I billed her 26k all inclusive: parts, labour and miscellaneous.

[MR.C]

Very well done. She must have been very excited, less than half her quote.

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[Rascal69]

Very well done. She must have been very excited, less than half her quote.

Thanks Bud, She was very appreciative and will be coming back soon for Suspension work and mountings..

[Rascal69]

Received a call during the first week in May asking if would be able to do the shocks and suspension on the vehicle . I agreed and the car found it’s way into the lift and we said to the customer that now is the time to address the oil leaks which we informed her of the last time.

Pics of the mess.








Oil leaks from the engine tappet cover, sump and oil filter housing then eventually runs past the gearbox and burns on the exhaust.

The plan was to replace the suspension while the subframe was out for the sump removal.

So we went out and started collecting parts.







A small fortune was spent on parts but we chose all OEM or high quality after market options .


We ran engine flush to break down as much of the sludge as possible .




Then washed and cleaned things




Removed the OFH


What a mess


Cleaned it up in prep for the new seal and OFH refitting


OFH and alternator back in place


Nice and clean


Next we pull the tappet cover off . The rubber he tuned into a plastic texture and was just breaking into pieces. Sent video to customer.



Then we pull the front subframe with steering and suspension


It’s full of grease / oil




Now that it’s washed we can strip and replace the steering and suspension components.











Engine mounts are shot! New vs old.





Even gearbox mounts where done and needed replacing.


When we dropped the sump, we saw that the gasket failed . The glue that holds the metal and rubber togther had separated .




Washing the sump before installing with new gasket



Sump and subframe installed. New steering and suspension items fitted.




Tappet cover washed and ready for install with new gasket.




Oil filter replaced and installed


Ceratech added and then oil filled.


Replaced dip stick orings


Stripped rebuilt and fitted rear shocks with new bilstein units.



Checked once more for any leaks before installing the new lower front tray we purchased .


Charged the battery


Took it for balancing and alignment


Washed it , then asked the customer to pay and collect


You can only imagine how good it felt after all this work was done.

[rodga]

so good to see this kind of work still happeing
keep it up guys

[Belix]

Quality work, thanks for sharing

[Unobeat]

EPIC EPIC WORK guys

Really appreciate these well detailed posts of such work being carried out.
The small fortune that the customer spend on this car is all worth it as the car must be driving like new.

[Rascal69]

Thanks guys.

[that_guy_Ettiene]

Epic work, nicely done

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