[240_benz]

Is there a torque wrench out there that works well with the W123? Typically you can get away with snugging certain bolts down but it's not a great idea since you can either under-tighten or over-tighten certain nuts/bolts such as the one's on the valve cover (which leaves you with a failed seal). That's a given.

There are many brands to choose from so I simply want to know which brand & model works best on the 616.912.

 

[dude99]

No one wrench should work better than any other one since they are all designed to do the same thing. I would stay away from the deflection beam type as they are extremely hard to use in right area's since most of them lack a ratcheting head. The "click" type ones are much better and more accurate... as to which one you should buy, usually just get the one that fits your budget. The more expensive you go, usually the more accurate it'll be. But for wrenching on our cars almost any one should do.

 

[Braunhilda]

hazet

 

[Govert70227]

The range is also important. Torque settings start at 7 Nm for the oil pan of the automatic transmission and the highest torque required is 300 Nm for the front crankshaft bolt. I use my Hazet 5-60 Nm the most (oil pan, valve cover), but I use my 60-320 Nm too for injectors and wheel bolts.

 

[neex]

Hazet is awesome, but very expensive.

I use a Sunex. Very well priced (I think I bought from Amazon), and I've never had any issues.

Craftsman = BAAAD; they break, and the warranty/guarantee does not apply to torque wrenches.

 

[mike-81-240d]

Snap On if you can foot the bill.

 

[300Dman]

I like to buy stuff from Harbor Freight but I would stay away from Torque Wrenches from there or ones of similar quality.
I have a Husky 39104 1/2 inch drive that goes from 25-250 Foot pounds and is US made. It also has a oddly numbered Newton Meter scale on it 43.4-348.4 Newton Meters.

I believe that range would torque anything on the Mercede with the exception being the Crankshaft Retaining Bolt and I say that because I do not know the spec it is torqued to.

I fugure the price should be above a Craftsman but below a Snap On.

 

[bmwpowere36m3]

Used Snap-On off eBay and have it calibrated, will last you a few lifetimes... A clicker type, if you can afford it get both 1/2" and 3/8" ones. 1/2" for wheels bolts, and larger hardware (60+ ft-lbs) and a 3/8" for all else (5+ ft-lbs).

 

[::matthew]

I'd love to have a few Hazets...but I think there is a rule about wrenches costing more than the car you're wrenching on.

 

[Govert70227]

I like to buy stuff from Harbor Freight but I would stay away from Torque Wrenches from there or ones of similar quality.
I have a Husky 39104 1/2 inch drive that goes from 25-250 Foot pounds and is US made. It also has a oddly numbered Newton Meter scale on it 43.4-348.4 Newton Meters.

I believe that range would torque anything on the Mercede with the exception being the Crankshaft Retaining Bolt and I say that because I do not know the spec it is torqued to.

The crankshaft bolt needs 300 Nm, so your Husky can do that. But you cannot do the lower torques for the valve cover (15 Nm), thermostat cover (15 Nm), transmission oil pan (7 Nm), torque converter plug (14 Nm).

 

[musides]

I use a Sunex. Very well priced (I think I bought from Amazon), and I've never had any issues.

They are certainly the right price, but the only one I can find on Amazon starts at 10 foot pounds, which is 13.5 nm. I think the key trick to finding a good wrench is getting something that can do the transmission pan at 7nm... I haven't found one yet.

 

[neex]

They are certainly the right price, but the only one I can find on Amazon starts at 10 foot pounds, which is 13.5 nm. I think the key trick to finding a good wrench is getting something that can do the transmission pan at 7nm... I haven't found one yet.

I've never used a torque wrench on a tranny pan.

(I reckin dern here in Alabammy we just terk dem bolts to er best guess.)