A photo of my roadside service set for Mercedes-Benz...A story of spending the night on top a mountain with your family in a W210 and no blankets:

The saga begins...

Friday night, February 14th, 2014 - our 4th wedding anniversary, 9:40pm PST, my wife calls from 50 miles away to say the W210 just shut down as she was getting on the freeway. I gas up the BMW and start heading out to the location in the middle of the Mojave Desert on a Mountaintop known as Cajon Pass, elevation 4,200 ft/asl. Along the way, I stop at an Autozone to try and get a crank angle sensor, but none are in stock, so I drive on up the hill to meet with my wife and 5 year old boy.

Upon arrival, the Benz cranks over smartly but no start. Fuel in the tank and pressure is in the rail. I check all fuses to no avail. Wife described the failure as immediate shut down without sputter or other incident. Plugging in my scan tool (Launch Diagun X-341 with both 16 pin OBD2 and 38 pin MBZ Proprietary) I am meet with "Unable To Establish Connection With Vehicle ECU" message. 12 volts was present at the data link, but no serial buss signal from ECU. Cooling fan running continuusly when key is on...a fail safe feature and indication of no-signal from ECU in this platform.

Time now is 11:00pm and outside temps are 40°F. The BMW doesn't yet have a heater due to a missing control valve. Clearly I have exhausted all my options...we call for a tow truck through Geico.

Hesperia, the nearest village, is a small town. No towing companies will take the tow (48 miles) past 10pm. An hour later, we find a tow company in Rialto, California, that will take the tow, but Geico will only two to the nearest Benz dealer, in Riverside, 33 miles away. The tow company wants $15.00/mile for the extra 15 miles to our home, so I tell them let's just tow it to the dealer and be SURE to bring a flatbed.

90 minutes later, the tow company arrives with a tail-dragger wrecker, which I refused. Another 1/2 mile walk from the car to get a cell phone signal and another request to Geico roadside assistance. The same company dispatches a flatbed...

3:30am...39°F and still no tow truck. Another walk to get a signal and the truck passes me. I flag him down and we go back to the car.

I open the port on the front bumper to expose the tow hook and the driver instead pulls the car up on the bed by the tie rod ends, bending one of them visibly. I take a cell phone image and save it for the complaint I will submit later.

55mph drive behind the tow vehicle to Riverside dealership (Walter's MBZ/Porsche/Audi) who have a gated lot, so the Benz has to be dropped on the street.

5:00am, finally get family home and in bed. I sleep 2 hours and go the dealership and explain to the service manager what happened. He offers me a job (still undecided on that one.)

Spend the entire day testing connections with no results. Power available to coils and injectors but no switching ground signal. On a whim, change CPS. No change and still no communication with ECU. Dealer brings out STAR (MBZ Official) Tester and no communication is possible.

Lock car, go home..eat & sleep...

Get up today at 7:30am and make coffee and search Google for ideas. Based on research of relevant wiring diagrams, the problem is either a failed 'K-40 Main Power Relay' or a bad ECM.

Drive 12 miles to dealership and pull ECM and K-40 relay for inspection. Drive 70 miles to shop in Palm Springs and start checking the units for any sign of a failure....write this e-mail...

To be continued....

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Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Have you pulled the OBD2 codes yet? What W210 do you have?
http://www.mbcluster.com/Media_Diagnostics/W210%20-%20Airco%20Sensor%20Reading.jpg
http://www.mbcluster.com/Media_Diagnostics/W210%20DTC%20Codes.pdf

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CENSORED due to not family friendly words

Looking for clues...

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__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

"No Communication" with ALDL with 12 volts present at connector...

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

The fans running on hi at the wrong time means something, just don't remember what.

__________________
Jim

Yes,

It's an indication of no signal to the ECU...

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Wow....sorry to hear about the ordeal, but love the line about the job offer.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 157k miles
06 E320 CDI "Rutherford", Black on Tan, 175k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 70k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

What model and year?

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 157k miles
06 E320 CDI "Rutherford", Black on Tan, 175k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 70k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Never had problems this severe with my W210. Not in 15-years anyway.

What are the miles and model of this car? Have you had a chance to review the VMI on this car? Have a set of maintenance records to consult?

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'06 E320 CDI
'17 Corvette Stingray Vert

Nothing other than general maintenance...1998 Production (1999?) E320....90,000 miles, original owner...

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Crankshaft position sensor?

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

Usually this would be a failure point but with no communication and rad fans running, the problem is in another area.

My 97 C280 will run the rad fans if the ECM is unplugged, I suspect others are similar.

You need a pin out of the ECM and check for power / ground with a incandescent test light. ( LED lights or digital meters can pickup stray voltage causing much troubleshooting grief. )

Ecu ,Whats a new one run?

He changed it already.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Sorry to hear about your ordeal. If you could have gotten in touch with me (I think I might have given you my phone #), I would have rescued you. Oh well, I am happy you got back home safe (can't say that about your car though ).

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All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html