2015 GLK 250 delivery and break in
I'm new to MB and diesel, anything should I be aware of when I pick up my new car? Does diesel vehicle needs any special attention than gasoline version in the break in period?
Last edited by hiker007; Jul 18, 2015 at 09:11 AM.
The first few times the car runs through the emissions regeneration cycle it may produce a bad smell like burning rubber. This is normal and it is worst when the car is new.
Short trips and short commutes will trigger the regen cycle more often. Diesel's like longer trips over 10-15 miles so they can warm up properly with highway speeds preffered.
The longer the trip and the steadier your speed the better milage you will get.
Find a few fuel stations that sell diesel and are busy. The more diesel they sell the fresher it is and the less chance of sediment, etc. The gasbuddy phone app can help - if prices for diesel update frequently it probably has fresher diesel.
It is not much different than driving a gas vehicle except you don't need to fill it up as often.
Last edited by formerjeepguy; Jul 18, 2015 at 09:16 AM. Reason: Added break in.
Just as important as keeping revs down during break-in is varying the revs as you drive. Pick routes that allow you to run up and down through the rev range, rather than sitting at a constant speed for prolonged periods.
The thing I'm struggling with is that first oil change. MB says 1 year/15,000km. There's no way I'll feel comfortable waiting 15000km on that first change. I'll likely do one oil change myself, at about 8,000km, and then let MB do their service at 15k km.
The tips for the diesel refill is very instresting. What is the difference of the diesel in Shell and other gas stations where many trucks fill up their tank? Is there any higher grade in diesel like premium gasoline?
Just as important as keeping revs down during break-in is varying the revs as you drive. Pick routes that allow you to run up and down through the rev range, rather than sitting at a constant speed for prolonged periods.
The thing I'm struggling with is that first oil change. MB says 1 year/15,000km. There's no way I'll feel comfortable waiting 15000km on that first change. I'll likely do one oil change myself, at about 8,000km, and then let MB do their service at 15k km.
For example, according to Blackstone Lab's tests, Honda is the only manufacturer using a break-in oil. I can't say with certainty if this is correct.
Follow breakin - and - yes - the factory uses a break-in oil additive mix - follow factory recommended service interval - 10K
Trending Topics
The Best of Mercedes & AMG
I've not seen multiple grades at the diesel pump. You just have to be sure that the bio-diesel content is within spec.
I'm impressive with the diesel, I'm expecting to save $1000 per year in the gas comparing with other SUV uses premium gas. Plus I like the shape of GLK than the new GLC. It could have been perfect if the rear leg room is a bit longer.
Not sure if I didn't adjust the seat properly, I ended up a little bit of lower back sore.
The Navi is pretty crapy as expected

One thing I notice is when I turn the key to third position(before start), I can hear the water flowing sound comes out at the back of the vehicle. It stops after 15-20 seconds. What is that?
Last edited by hiker007; Jul 28, 2015 at 10:33 PM.
One more thing I found is the car is shaking for a couple seconds if I move my feet to acceleration padel from brake too quick(but not hard, less than 2000RPM) at the stop. I'm not sure that shaking is due to tires spinning but it is annoy. if I let the wheels roll for a second or two after releasing the brake, it runs smoothly.
To smooth out the shudder that happens when lifting off the brake and hitting the throttle is to use the "hold" function. To use the hold function. Just release a little pressure from the brake pedal and reapply pressure again. Basically a double pump after you have stopped and the GLK will hold the brakes on for you. Then when you press the throttle pedal the brakes will automatically release and it will pull away very smoothly.
Last edited by super7pilot; Aug 4, 2015 at 03:10 AM.
Last edited by super7pilot; Aug 4, 2015 at 12:00 PM.
To smooth out the shudder that happens when lifting off the brake and hitting the throttle is to use the "hold" function. To use the hold function. Just release a little pressure from the brake pedal and reapply pressure again. Basically a double pump after you have stopped and the GLK will hold the brakes on for you. Then when you press the throttle pedal the brakes will automatically release and it will pull away very smoothly.

And yesterday, one of friend of mine just asked if I receive the radio code from dealership in case the car loses the battery, I didn't get it when i pick up mime, is it needed? Do you guys get it?



