Can a broken Odometer be repaired on an old Mercedes?

Quite often I either hear about or see another broken odometer on an old Mercedes. Don’t lose heart! The repair can be done by you. There are usually one of 3 reasons why they don’t work. So follow along with my pictorial and fix it yourself. Safety and security tips:

What’s the best way to loosen odometer cable?

Reach under the dash and gently pull the odometer cable an inch or 2 through the firewall. This will give you a little more room to get your hand behind the dash cluster when you loosen the cluster.

Are there any problems with my Mercedes diesel?

One of the most common problems we see on older Mercedes. Top problems for diesel owners. Kent recommends starting with the basics Yes, Kent has seen it first hand. Don’t neglect this! Could be any number of things causing the problem. Proper diagnosis is a must! You will need a bench mount pressure release tester to do this yourself.

How do you change the dimmer on a Speedo?

Gently lift out the clock cluster and set aside. Remove the 2 screws holding the speedo to the cluster, but do not remove just yet. Remove the 2 screws holding the gauge cluster and the dimmer switch. If your dimmer switch does not work, now would be a great time to replace it. Remove the speedo electrical box.

Why is the odometer not working on my Mercedes 300SE?

My ‘new’ 300SE suffered from a common problem with Mercedes of that era, a non functional odometer. The mechanical odometer is driven by a small electric motor instead of a traditional speedometer cable and associated gears. This is because the speedometer is electric yet the odometer is mechanical.

Why is my odometer not working on my jalopy?

The most common point of failure is a set of small gears that connect the electric motor to the odometer. They are made from a very soft plastic to ensure noise is not transmitted to the cabin. Over time, they loose teeth which stops them from working. Replacement of the gears is a fairly simple procedure.

Is there a way to repair a W126 odometer?

There are a number of articles on the internet that already cover W126 Odometer repair, however it took me a while to sift through them all. This was one of the best. The most common point of failure is a set of small gears that connect the electric motor to the odometer.

What to do if your odometer breaks on your car?

give you a little more room to get your hand behind the dash cluster when you loosen the cluster. Also I like to push on the dash cluster from behind to aid in removal. can scratch the cluster and tear the sealing gasket. This is why you want some slack on the speedo cable. The cluster can move forward allowing you to get your hand behind.

Why is the trip meter reset arm facing up?

to the trip meter reset arm, which is why we lifted up the gauge cluster. This makes it much easier to get the speedo in and out of the cluster without damaging the reset arm. it laying face down, and possibly bending the speedo gauge needle. These 2 plastic gears are a common place for failure of the odo. They will often strip.

Are there any problems with the Volvo 240?

It commonly fails in the open position allowing super heated air to be drawn into the engine, which reduces performance as well as dramatically shortening the life of the expensive air mass meter. The seats in the 240 are very comfortable when they are in good condition. 240 seats offer excellent adjustable lumbar back support.

Why does my odometer stop working on my car?

Keeping track of your mileage is important. The only way you’ll know if your car hits the 200,000 mile mark is by having a functioning odometer. But the plastic gears that turn an analog odometer have a tendency to break, which causes the odometer to stop spinning.

Why is odometer tampering a big problem?

Odometer tampering is a huge problem when buying a used car and the reason is simple, lower mileage used cars sell better, and they’re worth more money. So what can you do as a consumer to protect yourself from odometer mileage tampering?

Can a replacement odometer show the original mileage?

The odometer replacement sticker will have the original mileage hand written on it from the tech who replaced the meter. The repair order will also have the original mileage and date on it, the repair order is a legal document, and it is proof of original mileage. The new odometer will start clocking mileage from that point starting at zero miles.

What should I do if my odometer is broken?

You need to pull instrument cluster to get at those gears, but it’s not too bad to repair so long as you know what you’re doing. Since you’ve got your cluster out, make sure you remove any dust using compressed air and clean the clear plastic using a microfiber cloth.

What to do if your odometer is not working?

If all of your odometer gears check out, you can then test the odometer operation to see where the problem lies. To do this you should place a power drill, with an appropriately sized square drill bit, in to the speedometer cable opening and run the drill.

How does the odometer work on a Mercedes W123?

It is attached to a shaft that is responsible for turning the main odometer gear. This grey gear is the main odometer gear that turns the small plastic gears along the top of the odometer numbers. This is the other end of the shaft the brass gear is attached to. It is held in place by a tight fitting brass ring.

How can I repair the odometer on my Mercedes W123?

Get your cluster inside, someplace safe, and on to your work bench. Protect it with something on the bench like a towel to avoid scratching the clear plastic cover. To get access to the odometer, the speedometer assembly needs to be removed. First, however, the tachometer/clock assembly needs to be removed as it overlays on top of the speedometer.

How do you remove a tachometer from a cluster?

Remove the screws holding the tachometer/clock assembly to the back of the cluster. There are three shown here; a fourth is obscured behind the fixer’s hand. You may also need to remove the rheostat that dims the instrument lights. You will now be able to carefully lift the tachometer/clock assembly out of the cluster. Set it aside someplace safe.

What to do if your odometer stops working?

When your odometer ceases to work, most people assume they must replace the unit, which can get quite expensive. However, you can repair an odometer fairly easily. The odometer stops working because the gear within the odometer has worn out. You’ll need no special tools to do this, but you must know what to watch out…

Why does my odometer fail on my Corvette?

Many odometers fail because the gears that drive them fail. Visit our sister site SpeedometerGears.com to order them. We also have Corvette odometers for 1953 to 1983 Corvette speedometer repair for sale and worms gears.

What causes the odometer to count the wrong mileage?

Odometer may count the mileage incorrectly if the tire size is changed. See our Speedometer Calculator to see how much error you may have. The error will also affect the speedometer readings as well. Wrong mileage.

Where can I get a corvette speedometer repaired?

Visit our sister site SpeedometerGears.com to order them. We also have Corvette odometers for 1953 to 1983 Corvette speedometer repair for sale and worms gears. Call 1-800-572-2880 for help selecting and ordering those. Odometer may count the mileage incorrectly if the tire size is changed.

Reach under the dash and gently pull the odometer cable an inch or 2 through the firewall. This will give you a little more room to get your hand behind the dash cluster when you loosen the cluster.

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