Thu
Aug 06 2009

Googling Diagnostics

Hilton Holloway
I’ve had a mobile phone for 14 years and Interent for at least 10, but the potential of modern communications still blows my mind, especially after the call I received a couple of evenings ago.

I was loafing in the office at around 7pm, when my mobile rang. It was a friend who teaches at school just down the road from Autocar’s Teddington offices.

I was surprised to hear he was actually calling from a village in the Swiss Alps with a problem. He, the missus and four children had piled into his 1999 Mercedes E320 wagon, heading for Tuscany.

Stuck in the traffic in southern France, the car had cut out. After half an hour immobile, it re-started and delivered him to his first overnight stop in otherwise rude health.

‘What did I think?’

Well, I’m a long way from being a mechanic or technician. So I busked it. ‘Well, it was probably electrical and a fault that is affected by heat. Could be anything. An air mass sensor or something.’

Funnily enough, he’d replaced the air-mass senor a few years ago because of rough running. So I suggested getting it to the nearest Mercedes dealer because fault diagnosis is easier with a relative modern car. Plug the laptop and download the fault codes. Simple.

He wasn’t keen on the idea of breaking his journey. Then again he didn’t want the Merc to die in a queue in the Mont Blanc tunnel.

So I suggested that it was a) much hotter in central Italy, which was likely to make the fault worse and b) easier to fix the Mercedes in France or Switzerland because he just happens to speak both French and German fluently.

So I booted up Google and clicked onto Multimap to locate him. The nearest big town to his overnight stop was Annecy, so I searched for ‘Mercedes, Annecy’ and found there was main dealer in the town.

I gave him the number and address of the dealer, but thought it might be a good idea to do another Internet search on the likely cause of the fault. I typed in ‘E320, stalling’ and found at least three enthusiast forums dedicated to Mercedes ownership.

In a minute or two, it became clear that what he’d experienced was very common with the W210 Mercedes for two main reasons. Either a dodgy air-mass sensor or a dodgy Crankshaft Position Sensor. The latter usually started to fail when it got very hot. Interestingly, the net forums suggested the CPS didn’t always store the correct fault codes when it was dying, making it tricky to pin down.

I was pretty convinced that the CPS was to blame, so I Googled onto an Internet translation site to find out the French for ‘crankshaft’. (Vilebrequin, according to Babel Fish) and sent my friend on his way.

24 hours later I texted him to find out what had happened. ‘Mercedes Annecy agreed that the CPS was probably to blame. I had it changed in less than a day. Now in Italy. I owe you a big one.’

Perhaps there’s future for me at Merc’s call centre…

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About Hilton Holloway

Has two product design degrees and used to design mountain bikes. Realised that cars were a lot more interesting in 1990, and has been writing about them ever since.

Comments

TegTypeR August 6, 2009 7:31 AM

Now, go in to your local UK Merc dealer and suggest the same problem to them.....  "No Sir, no a problem we know about.  Besides our fault code says...."

I've been here before and after several hours (at some ridiculous rate), they happen to find the fault!

Does this mean advances in technology, like the internet, isn't allowed in vehicle main dealers?

Robbijay August 6, 2009 9:15 AM

"Does this mean advances in technology, like the internet, isn't allowed in vehicle main dealers?"

No, it means the main dealers will do anything to increase the invoice and the assume the customers aren't intelligent enough to do their own research!!

ordinary bloke August 6, 2009 9:47 AM

Things may have changed by now, but my experience of Mercedes dealers in the UK has been pretty dismal (both for myself and and friends/colleagues) whereas in France the service received was superb. On holiday with an A-Class in the middle of nowhere at a small hotel the car started by would not run properly. We contacted the local Mercedes dealer 40 miles away and an hour later a mechanic appeared in an A-class packed to the roof with electronic trickery and set to. He explained in broken English what was wrong and got it going enough for us to drive home slowly as we were booked on the ferry late that day. At the end of it all he refused payment whilst apologising for not being able to do a full fix but having given us a printout of the diagnostics to give to the UK dealer.

The Colonel August 6, 2009 2:14 PM

Really, what kind of maniac travels to Italy, driving through France in August!  With four kids in tow!  Does your friend like to go out and party with Max Mosely, Hilton?

On the subject of French (particularly) vs. British main dealer service, it certainly seems to be true that the French dealers are free-er with their time and expertise.

A number of years ago my missus managed to wreck a tyre on our Z3.  Being a dainty thing (and having no idea how to release the space-saver spare) she called the local dealer as it was the first number she had to hand.  They made no issue of the fact that she ought to have called BMW Emergency Assistance (she probably thought she was in any case!!!).  Fifteen minutes later a man in a van arrived (she had been told his name, and he had ID), took the wheel off, walked it round to a nearby tyre shop with missus in tow, they replaced the tyre, she paid them directly for the tyre, fit and balance, and the BMW tech then put the wheel back on, all for no further charge, but she did send him a thank you card and a bottle of Whiskey.

Lee23404 August 6, 2009 6:01 PM

Teg - I have had just the same experience, but with my wifes Meriva and the local Vauxhall dealer. Same senario, you google the fault, go on some sort of enthusiasts website who tell you what the fault is and how to fix it. Go back to Vauxhall dealer (the car is under warranty) who say "never heard of that one before".

Maybe Mercedes are better. I get the impression with Vauxhall dealers sometimes that I could take the car in with the engine removed and they wouldn't notice unless the computer threw up a fault code.

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