Hi Tuercas,
First of all many appreciation for your detailed comment! Based on what you described, It must be an enjoyable experience to have the car repaired at your shop!
Yes they have gave me an estimation of time during my first visit verbally; they said it will take approx. two weeks and it apparently exceeds now. They also told me that the fault might be caused by the faulty timing chain but could not give me an est. cost.
Regarding the authorization, they only requested it for twice; it usually happened when cost will be incurred. First time was for "investigating the problem", and the second time was before removing and sending the injectors for testing. No more authorization was requested since then. They just did what they believed is correct.
I was away from my home town during the past week so couldn't visit them personally. I tried to ring them for many times because I want to further discuss about the situation. Each time after I call them or send them an enquiry message, they just update me a short message few hours or a day later but they never call me back.
The last message saying they need to let the sample fuel drained from my car settled over the coming weekend, because "the fuel is still very dark and hasnt settled after 24 hours". I don't know if this procedure usually takes such long time, but from common sense I think there should be some tools such as filters that can help this process progressing more quickly than this. How on earth can they take 4 days to find out if theres any trace of mental in the fuel???
Bejezus
I can't afford to have a customer's car sitting about waiting for fuel to settle.
As a comparison our fuel (DERV) is often suspect, and a lot of our MB repairs are fuel quality related.
It ranges from accidental filling with petrol (gasoline) to buying fuel from a lonely Mom & Pop gas ( filling ) stations that doesn't sell DERV too much and you fill with contaminated fuel. (rainwater organisms)
Add that to variations in fuel standards from state to state (#1  diesel winter/summer blends) to amounts of Bio content sold State to State up to B20
Sometimes folks fill with the red tax free Ag Derv stuff, and then you get those that have visited Mexico with high sulphur fuel.
I/We see it all!
Drill is suck out the fuel and examine.
Take look in the tank with an endoscope. If it looks good then bung in 10 gallons of quality pump fresh fuel so a labor charge 1,5 hours $225 plus fuel @ $3,25 per a gallon $32,50.
Change out the fuel filter and examine, Labor 0,5 hrs $75 plus fuel filter (is on average $80 .) purge the lines
Bleed up & Go for start, look for pressure in the HP fuel system and see if there is injection. If it attains 250 bar at cranking or so it might start.
At this this stage all scanner diagnostic charges are complimentary, FOC.
Then we have to go back to the customer who might be waiting in reception.
It usually goes ,
Well Mr Jones you had contaminated fuel in the car and your filter was choked.
We are just going to push it up the mountain and test it looking at live data .If it checks out then the total charge will be
2 ,5 hours labor including road proving test .
$375 (GBP) 267
Materials:- 10 gallon DERV $32,50 (GBP 24,00)
I off fuel filter $80 (GBP 58)
Tax 4,6 % on the filter $3,68 (GBP 2,62)
Now if its still a non runner and maybe like your car with FIE problems, then I have to get further authorization .Often the vehicle has been dumped or pulled on the hook.
Hence an absent customer.
I have female service writer called Scotti (a skilled tech I recruited from a Nissan dealer ) who deals with most of this at the front end. ,Its her job to call & pester the customer nicely and sell the job .
Mr Jones
We have cleared the contaminated fuel , purged out all the fuel lines and installed new filter . Testing it we see that the rail pressure won't attain the 250 bar for optimum starting .
We need to remove the injectors charge 1 hour $150 and out source a test at the Bosch FIE dealer @ $50 per injector. The charge will be $200 plus 1 hour shop time .
That will be $350 do we have your permission to continue, if so please electrically sign the job ticket .
If I /we get your approval before 10,00 am we will have a test answer within 24 hours .
At that point we will discuss the repair options and charges.
The object is to reduce the wheel stop time and turn over successful repair jobs with a minimum of shop stall, or valuable hoist time, but maximizing profit margins, and keep customers happy with regular feed back, so that they don't feel neglected or put on the back burner
Tuercas viejas .