BMW Z4 3.0 in need of TLC
Posted: Mon Oct 07, 2019 8:45 am
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

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
