Quick list of things you can consider to increase performance and mileage
What's wrong with my Mercedes?
Don't just ignore your turbo charger or major problems can occur!
Plastic guide rails and oiler clips can fail leading to major engine damage
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!
Failure of these hoses can lead to total destruction of your engine
Injectors do not last forever. Changing over to Monark nozzles can boost performance!
Good reference material if you plan to replace timing chain and related parts.
Diesel Purge can help you isolate the noise
It is almost always a failed thermostat
Most of those annoying leaks can be fixed with our DIY kits
There are a number of reasons - don't throw money at the problem - diagnose first!!!
This can help smooth out a rough shakey idle on an 5 cylinder turbo diesel
Don't neglect the fuel filter and fuel pump check valves
Before spending any money on a tired or ailing diesel engine - check the compression first
Timing tends to retard over time with wear and chain stretch
Do it very soon unless you know it have been done within the last 50,000 miles.
This MUST be installed properly when replacing it or timing chain or engine damage can occur!
Applies to 220D 240D 300D 300CD 300TD 300SD 1972 to 1985
Doing it without damaging the wire boot and resistor is easy with the right tool
Alert for all Diesel Owners - Check for loose Intake / Exhaust Manifold Nuts.
A special compound should be used - especially with steel bolts in aluminum threads
This is often neglected and an easy D.I.Y. job
Failure of these chains can lead to catastrophic engine failure
Many are surprised to learn there is a filter down inside the pump
Usually means something is broken or loose in the engine compartment
At all costs avoid rounding out the hex head of the bolt!
With the right instructions this is a beginner DIY job.
Most often this can be done without special tools using a helper and a heavy hammer
A real problem when changing an engine or the rubber mounts
And His Reasons Why
Avoid the pain of having to drill or cut the bolts off
Catch them with a diaper before they drip on the ground!
If the car has been stored or not driven regularly plan on some problems - some may be hidden!
Not easy by any means. Options and ways to prevent it are listed here.
Some are no longer available new and the last ones will disappear soon
You neglect the maintenance here and you WILL pay the price
These questions become more important with the long oil change intervals associated with Synthetic Engine Oil
It's Such a Small Procedure This Video Instruction is Only 2 Minutes in Length!
Don't just install the engine without taking care of a number of potential problems
Sometimes you just have to take a break from working on your diesel... :-)
Biodiesel is not too kind to rubber
Tired of waiting for the glow plugs to heat up - we have the answer!
This is Kent's favorite
We have a special kit with complete instructions so you can fix it yourself.
Sometimes they are really stuck on the shaft!
This is normally not due to "leaking seals" inside the turbo charger
Watch my short 4 minute video to find out!
Part 1 and 2
If not too far gone you can fix them - and yes it is a miracle!
Ball joints and pivot points should be lubricated on a 6 to 12 month basis
Common problem due the failed air cleaner mounts and mounting bracket
A faulty 617 turbo diesel waste gate can really affect engine performance
Find out what it does, how to test it, and what happens if it does not work.
Could be the starter itself, ring gear on the flywheel or a combination of both
Monitor your engine temperature gauge in the morning for telltale signs.
They can be a little tricky to isolate
Fan clutch can make metallic clinking noises
Best done from the front crankshaft bolt
These can be hard to see if your engine is dirty and you don't know the exact location
The best way is to use an oil extractor
You of course need the right wrenches - but if one or more won't adjust - what then???
Listen and learn from a live video with sound.
Do not neglect to give it Kents 30 day exercise program
Just I Jump in and Go? NO!
A common problem due to failed valve guide seals
A very common problem that requires MORE than just installing a new rubber gasket
How to tell which one you have?
It could be turbo seals but it could also be excessive diesel engine blow-by
Special tools are needed but you can still run into problems
4 key performance related issues to consider. Do proper troubleshooting first BEFORE buying parts
Is There a Solution?
They can fall off especially if your exhaust system is sagging or not mounted properly
Parts are different so it is important to know which engine you have!
This can be a real challenge if the problem comes and goes either warm or hot
With the right tool and a little know-how it is super easy.
Even low mileage gas Mercedes as Kent recently discovered.
If you don't fix it the problem will get worse and the coolant hose will leak
With the right paint and technique YOU can do it yourself!
Not Tested on Humans, Yet.
This can be difficult to diagnose
It could be a number of things causing the problem. Follow Kent's video series
Summary list of the most common causes and parts needed to fix them Part 2 of 5
Milestone 6 cylinder diesel only available in 1986 and 1987
You MUST make sure this is working and adjusted properly if you want your diesel to GO !!!!
How can you do it without removing them from the engine?
Some special tools can help
This is especially important when installing an aftermarket electronic ignition
Adjustment procedure must be followed properly!!!
Summary list of the most common causes and parts needed to fix them
You would be amazed at the pesky problems these can create!
You actually may not need a large tank to thoroughly clean them
You can do it with magnets!
Now the timing marks don't line up - What do I do! - Help...
On Most 1981 to 1991 Mercedes Benz
These can be a little tricky to get on
Summary list of the most common causes and parts needed to fix them Part 3 of 5
It is best if you can see and hear it run - if not some tests are essential
If the engine has been overheated it is almost never "just a head gasket"
When you engine wears out - look seriously at swapping in a different engine
Addition Safety Tips in This Video
It's common problem but luckily you can fix it yourself!
For Adjusting Diesel Fuel Injector Release Pressures
Alert! Use at your own risk
Pay attention! This is very common and can happen to you if you own a 1968 to 1985 diesel
Too Cold think thermostat - too Hot think a number of possible causes
Summary list of the most common causes and parts needed to fix them. Part 5 of 5
It is not the problem with the new nozzle - there are other issues that cause poor spray
How to get the frozen nuts off and the stud back in safely
The distributor cap has become the number one culprit due to age and neglect!
Besides Lack of Oil Changes
Don't Neglect to Check Simple Things First
An ounce of preventation is worth hundreds of dollars in repair
Sometimes fuel injector cleaner can work wonders
Check Your Low Pressure Power Steering Pump Hose
An old hose can be very difficult to remove due to age and corrossion
Summary list of the most common causes and parts needed to fix them Part 4 of 5
6 part video series on reasons why you should or shouldn't
You may have to make your own like Kent did...:-)
If the break was clean and the tank still solid you can be repair it for less than $50.
Shocking I know!
This can be a sign that the engine has not been well maintained
Thoroughly check the car and especially the engine before spending big $$$
Are you concerned about damage to the electrical components and sensitive electronics?
If you use RTV you can create some real problems
Here are some quick checks you can do yourself to determine how good the engine is.
Very easy to do if you know what to do with that little numbered black box!
And no, it's not me! Haha
Sometimes having the right tool is key
If you don't look closely this one can be hard to find!
Do your homework and proceed carefully BEFORE buying! Type of Problem: troubleshooting
Here are some of Kent's favorites - most you should carry in your trunk
A simple procedure if you have the V6 (M112) or the V8 (M113) Engine
Kent has been inspired to design his own series of ultimate shop lights
Opinions abound - Kent can only share his...
AND Pinpoint The Cause
Be sure to check your radiator / expansion tank cap
On some models this can be a difficult and frustrating job
We can only offer limited support due to low demand
It will require the removal of the serpentine belt
There is a better and cleaner way!
This is how Kent deals with the problem
I Bet You Can't Guess It
Fuel injectors will need the most attention
Applies to most models from 1980 to 1995
Sometimes it can be near impossible to get the bolts out and the parts separated
Your inspection should always include this
How to determine if they need replacement
Quite a number of changes for just a one year and final run of the 300D 300CD 300TD 300SD
It takes work but with the right products and techniques you will be amazed
Throttle Linkage Inspection, Service and Repair