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  #1  
Old 04-29-2008, 07:41 AM
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Join Date: Apr 2008
Posts: 2
W126 300SE Questions

Hey guys, first post on the forum!

Got a few questions....
Iv organised a charity event, its called the Crapheap Challenge, www.crapheapchallenge.co.uk (it needs updating)! But yea basically going 3500 miles around france and italy in cars for under 500

So i managed to pick up a gem of a 'D reg' 300 Se for 499. It has had one owner from new, covered 139,000 miles and full service history at the same garage! It drives so well, apart from when the power steering pump failed and it took two of us to get round the corner!

Anyhow, question time....

Whats the offset/pcd of the car
Running temperture, mine varies between 80c and 50c depending on weather, if the heatings on, and if you stopped, cruising, speeding...
Also the car feels a little hesitant at times, think it has alot of gunk in the tank as the throttle body is bascially black all the way through! So whats best to clean it with?

Iv put a small bet down with my friends, they reckon the Merc will give up in a puff of smoke where as i think this thing will go forever! I drive a Clio 172 Cup daily and a track prepared BMW E30, so its a joy to jump in a cruise along smoothly once in a while!

Just so you can imagine where we are going, were Crossing the channel to Calais, then driving to Poitiers, Millau, Monaco, Albenga, Lyon, Paris, and home, but within those miles we will be travelling up the Col de Turni (cant spell!) and various other pases, as well as travelling through Mont Blanc.....

Anyhelp would be great!

Thanks
Phill

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Old 04-29-2008, 07:56 AM
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Join Date: Nov 2007
Location: UK
Posts: 134
The offset varies, but most low offset wheels work well, from about 10-25mm Some of the AMG and other tuner wheels from back in the day were even lower offset (0mm!) PCD is 112mm

Temperature wise, it should stay at about 80-90 when warmed up. It sounds like your thermostat is duff. You might find that the car behaves fine after changing it, as when the engine is colder, it'll be running rich.

Fuel shouldn't be getting near the throttle body, you are probably seeing the residue of the blowby gases/oil collected in the throttle body/air meter.
If you want to clean it out, use some carb/brake cleaner and plenty of rags.

Make sure you aren't using the 'E' Setting on the gearbox, use 'S'. This doesn't mean sport, it means standard. E will never use first gear, whereas S will if you floor it. Other than that, the switch doesn't do anything else to the shift points etc.

Cheers,
Ben
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Old 04-29-2008, 08:04 AM
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Join Date: Apr 2008
Posts: 2
Ah ok, ill give that change, and the coolant flush, hoping this will help it a bit! The only thing I am worried about is overheating in the south of france, if we get caught in traffic! Yep the E setting is not fun! Especially when your trying to pull out on a round about!

Thanks for the advise mate, ill get onto Gsf and get a new t/stat!
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  #4  
Old 04-29-2008, 08:21 AM
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Join Date: May 2006
Location: N. California./ N. Nevada
Posts: 3,611
Do you have pictures of the car?

Once the problems are sorted, you may find, if the car has not succumbed to rust nor rot, you have a safe, comfortable car that could last you for hundreds of thousands of kms. 139,000 is NOTHING for a well kept 6 cylinder one of these cars.

I have always been bewildered why, in your country, these fine cars have never received their proper attention and adulation. "Crapheap" indeed? A Renault Clio is more worthy of that moniker. In your country my observation is that cars are discarded like used tissue paper every 2-3 years. Because of the MOT tests, or for whatever other reasons, vanity, the strange "company cars" phenomenon, or whatever....

A W126 Merc is the opposite of all that, it is engiineered to last decades.

YOu may find you want to keep it. Also, have a look at www.benzworld.com in the W126 section, which has been acclaimed to have the most intense worldwide focus on these models. I am a moderator there and would welcome you. But if you sign up, don't do so as Crapchallenge, your welcome could be chilly.

Good luck in your endeavors.
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1995 E 420, 170k "The Red Plum" (sold)

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  #5  
Old 04-29-2008, 08:49 AM
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Join Date: Nov 2007
Location: UK
Posts: 134
I'm not that familiar with the 6 cyl engine, but before you place an order, check to see if you have the plastic thermostat housing. If so, order one of these at the same time as they are prone to cracking at this age.

Cheers,
Ben.

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