Planning for 2022 service on my '89 328.....

Fuel filter? Rubber brake lines? Checked valve clearances? The 5 B's - bearings, bushings, ball joints, boots (CV), belts (auxiliary).

 

Valve clearances

 

I'd address the slow start when hot because that would annoy the heck out of me! But we all have our own priorities!! Yeah...and that reverse light too...

I would assume that if it gets a yearly dealer service that the scheduled valve adjustment was performed at one of them. If not, as mentioned, that would be a good thing at the specified mileage intervals in the manual.

The rest of what you identify sounds good. As far as "hard" components, I wouldn't replace anything that is not a "scheduled" replacement in the manual until there is an indication that it needs replacement. For example, I'd leave a 33 year year old water pump right where it is until it starts seeping from the weep hole or otherwise calls attention to itself (roughness/vibration from the bearing, etc). Others prefer the "while you're in there" method. It's all about what you are comfortable with.

Personally, I'm very comfortable with, "If it looks/feels/acts OK, leave it the F#$k alone!

 

Sounds like the reverse light switch needs adjusting (I'm a bit surprised they reported it, and didn't simply adjust it free of charge)

Are the front wheel bearing's showing signs of any issues? (noisy/excess movement/getting hot) - If not, I wouldn't bother replacing them just for the sake of it.

When were the valve clearances last checked and adjusted? - If it's been a while (or not at all), I'd be tempted to get them done.



(I hope the following doesn't sound as though I'm suggesting you don't know what you're doing, when it comes to starting the car):

On the slow hot start - How are you starting it?

Reading the owners manual, for cold starting it states: "Do not press the accelerator pedal."

For hot starting it states: "....... It might be useful for very hot engine to slightly press on the accelerator pedal"

Could it be that you're starting when hot without any throttle/accelerator pedal, and that's causing the slow start? - Just a thought

 

So it’s normal that the start is difficult when warm! I was thinking something was not ok.

cold start perfect. Warm it takes 2 or 3 attempts

 

"So it’s normal that the start is difficult when warm! I was thinking something was not ok. "

I've not found that to be normal on my 328 - hot and cold starts are the same - turn key, car starts.

 

My 89 328 GTS with 18.000km cold starts every time, second gear is hard to engage when cold, hot starts are no issue, 1 time in 10 just needs a bit of gas to fire it up again.

 

Same here. Mine starts right up no matter how hot the engine is.

 

What would cause the hot start issue.
Not starting on the first crank. Maybe the 3rd

 

'89 GTB / 60.000 kms & '89 GTS / 41.000 kms: both start everytime cold or hot.
Second gear hard to engage when cold on the GTB, not on the GTS in warm weather; slightly harder in cold weather on both cars.

Rgds

 

Try disconnecting your cold start valve. I've heard these can cause starting issues under certain conditions.
Also do a residual pressure leak down test on the fuel system.

 

Hot start is 90% a problem with the fuel pump, fuel connector crimp, relay, and accumulator, even on a 328. As it gets worse, it won't start at all. For another 30 years of carefree driving, replace them all.