What to do if your Mercedes SL Class R129 is running rough?

What to do if your Mercedes SL Class R129 is running rough?

Check your charging system. If your engine is running rough and misfiring you may need to change your cap, rotors and wires. If your valve cover gaskets are leaking we will show you how to replace them. Engine running lean/rough. Maybe you have a vacuum leak. If you engine is only running on one bank of cylinders you may have a bad coil.

When to replace battery in Mercedes SL Class R129?

Replace your battery if it is 5 to 7 years old. A slipping drive belt will squeal and a broken one will leave you stranded. Check your drive belt. A broken drive belt tensioner is just as bad a a broken accessory drive belt. Is your car running a little hot in traffic?

What makes a Mercedes sl129 make a clicking noise?

Check that lower control arm bushing. Uneven tire wear and unusual handling in turns can be caused by worn suspension links. Check your rear rearward upper link. A light clicking noise from your rear suspension over bumps can be the result of worn sway bar links.

What did the Mercedes SL500 R129 do in 1998?

The 1998 adds an alphanumeric display to the dashboard and a remote control with more buttons. The 1998 also introduced computer prediction of service intervals. In the 1998 and newer you can go about 12,000 miles between services depending on how the computer thinks you are driving.

When did the SL500 body style come out?

This R129 body style SL500 was made from 1990 through 2002. It was called the 500 SL from 1990 – 1993. They all have just about the same suspension regardless of year or package. The “sport” packages are just trim and tires, not suspension, engine or drivetrain.

When did Mercedes Benz stop making the SL500?

There are three major versions of the SL500, the first from 1990 – 1995, the best version from 1996 – 1998 and the final cost-reduced version from 1999 through 2002.

Check your charging system. If your engine is running rough and misfiring you may need to change your cap, rotors and wires. If your valve cover gaskets are leaking we will show you how to replace them. Engine running lean/rough. Maybe you have a vacuum leak. If you engine is only running on one bank of cylinders you may have a bad coil.

Why does my Mercedes SL Class make a clicking noise?

Uneven tire wear and unusual handling in turns can be caused by worn suspension links. Check your rear rearward upper link. A light clicking noise from your rear suspension over bumps can be the result of worn sway bar links. Is your rear ride height lower than normal or do you want to install lowering springs?

How much does a 1994 Mercedes Benz SL cost?

Mercedes-Benz SL 320 $11,999 Reduced Hatman Motorsport Used 1996 Mercedes-Benz SL 320 $12,919 VIP Auto House Used 1995 Mercedes-Benz SL 500 $15,500 Private Seller Used 1994 Mercedes-Benz SL 500 $17,900 Private Seller 10 Mercedes-Benz SL-Class vehicles for sale near you.

How much does a Mercedes Benz SL 500 cost?

10 Mercedes-Benz SL-Class vehicles in your area. Used 1996 Mercedes-Benz SL 500 $7,995 Speedy Car Sales Used 1996 Mercedes-Benz SL 500 $10,991 Ford Lincoln Fairfield Used 1996 Mercedes-Benz SL 500 $N/A Private Seller Used 1994 Mercedes-Benz SL 600 $N/A Wheels and Deals Used 1996 Mercedes-Benz SL 320 $7,895 Private Seller Used 1994

Replace your battery if it is 5 to 7 years old. A slipping drive belt will squeal and a broken one will leave you stranded. Check your drive belt. A broken drive belt tensioner is just as bad a a broken accessory drive belt. Is your car running a little hot in traffic?

What should I know about Mercedes Benz R129?

Welcome to our Mercedes-Benz R129 Technical Articles section. We’ve gathered a vast collection of useful articles to help you perform many repairs and upgrades on your Mercedes-Benz. Save money by doing your own work and perform the repairs using the information we’ve provided here.

Where to find Diagnostic fault code for Mercedes R129?

Instead of counting flashes, the AC console displayed fault codes on the two digit LCD temperature display and were cleared by a combination of pushing buttons. Information for the reading and clearing of the diagnostic codes of the AC unit for the R129 can be found on page 90 of the Cs1000 Baum Tools Manual.

When did Mercedes Benz stop making the R129?

Mercedes-Benz started galvanizing their cars only in 2003/2004, while the production of the R129 model stopped in 2001. Still, the R129 SL-Class cars seem to hold up quite well when compared to other Mercedes-Benz cars from that era, for example, the W202 C-Class or the W210 E-Class.

What kind of engine does a R129 SL have?

These late R129 V6 models are highly prized, none more so that the beautiful Amber Red car we see here. At launch in 1989, the R129 SL was available in 300SL, 300SL-24 or 500SL variants, representing two six-cylinder engines (M103 12 valve 188bhp or M104 24 valve 228hp) and a 5.0 litre 322hp V8 (M119).

What are the symptoms of a failing Mercedes R129 harness?

The typical symptoms of a failing harness are electrical errors, problems with starting the engine, poor running and rough idle. Before buying a 1992-1996 Mercedes-Benz R129, check if the harness has already been replaced.

How to fix a Mercedes Benz stuck in Park?

Insert the key into the ignition and turn it to Position, I, II or start the car. Starting the car is not compulsory but optional. While following these instructions, press the brake pedal and keep them pressed to ensure that the car does not roll away.

Is it possible to steal a Mercedes Benz?

This explains why Mercedes are virtually theft proof. The only way someone can steal your car is with your transponder key or a tow truck. So if you have a bad ecm that requires replacement then we will have to program the new ecm to match all the data of your old ecm.

What do I need to troubleshoot my Mercedes Benz?

Troubleshooting fuel related problems is not very difficult and you can check the fuel pressure yourself. Checking the fuel pressure is very simple. For this test, you will need a fuel pressure gauge. What you need is a fuel pressure gauge with Schrader valve adapter.

Insert the key into the ignition and turn it to Position, I, II or start the car. Starting the car is not compulsory but optional. While following these instructions, press the brake pedal and keep them pressed to ensure that the car does not roll away.

Troubleshooting fuel related problems is not very difficult and you can check the fuel pressure yourself. Checking the fuel pressure is very simple. For this test, you will need a fuel pressure gauge. What you need is a fuel pressure gauge with Schrader valve adapter.

What do you do if your shifter is stuck on a Mercedes?

If your Mercedes-Benz automatic transmission gear selector is stuck, you can manually move the shifter from P to D (or D to P) using the shifter override feature found on almost all Mercedes-Benz models, including E-Class, C-Class, CL-Class, ML-Class, SLK-Class and other models.

What causes a Mercedes Benz steering angle sensor to lose memory?

B1628 Part E2e5 (Turn signal lamp) in module E2 (Right front headlamp unit) is defective. Body C1140 BAS light, play in steering column causes steering angle sensor to lose memory (?) Chassis C1504 BAS light, play in steering column causes steering angle sensor to lose memory (?) Chassis P0818 Driveline Disconn. Switch Input Circuit Malfunction

Uneven tire wear and unusual handling in turns can be caused by worn suspension links. Check your rear rearward upper link. A light clicking noise from your rear suspension over bumps can be the result of worn sway bar links. Is your rear ride height lower than normal or do you want to install lowering springs?

What’s the problem with the Mercedes Benz SL?

Unusually, though corrosion is not a big problem on these SLs, later cars are more prone; there are dark mutterings that, after merging with Chrysler, Mercedes was cutting costs… All are laden with electric and electronic trickery, increasingly so on later and higher-spec models.

What kind of engine does the Mercedes SL500 have?

During production, Mercedes changed from the 24-valve, twin-cam M104 straight-six and 32-valve quad-cam M119 V8 to the 18-valve single-cam-per-bank V6 and 24-valve quad-cam M113 in ’98. Some power outputs were marginally down, making the 1995-’98 five-speed auto SL500s the most sought-after of the standard cars.

What should I do if I have a transmission Shudder?

Follow recommended guidelines to service these units, or have a professional lube shop perform the service with their specialized equipment. Depending on the manufacturer, check the transmission fluid level with the car in park or neutral. Be sure to set the parking brake.

What are the features of a radio sl300?

SL300 has been designed for easy, intuitive use. The Active View display uses a matrix of LEDs behind the radio housing to communicate radio information. The side volume control, dedicated power button, prominent push-to- talk button, and top toggle channel switch have all been designed for quick one-hand access.

Is the MOTOTRBO sl300 a push to talk radio?

The MOTOTRBOTMSL300 provides reliable push-to-talk communication for the mobile, everyday user in an ultra-slim and rugged profile. Whether you’re coordinating a school event or working in the field, the SL300 is boldly designed to keep you efficiently connected. The latest technology works to make operation of the SL300 simple and straightforward.

What does SL stand for in Mercedes Benz?

In one form or another, Mercedes-Benz has been producing a two-seat sporty convertible since 1954 under the SL-Class moniker (SL standing for “Sport Leicht,” or “Sport Lightweight” in English). The cars have always been popular standard bearers, and have combined sporty touring qualities with comfort and quality.

What should I replace my front sway bar on?

By replacing your front sway bar you’ll go a long way towards eliminating body roll. Your wheel bearings are some of the hardest working parts on your car. Replace them to get your car rolling down the road smoothly. You car should not continue to bounce after you go over a bump. Replace your shock absorbers Do you have a steering wheel vibration.

What happens if you open the hardtop on a Mercedes SL500?

If either of these are open, the retractable hardtop cannot operate. Once the lid and cover are shut, the hardtop switch may be used. Start the vehicle’s engine, and let the car run while you open or close the hardtop. The hardtop does not operate if the car’s battery voltage is too low.

Is the rollbar light on in my 1998 Mercedes SL 500?

1998 Mercedes sl 500 my rollbar light &top light on but top working & rollbar work when open and close top That all happen after battery dead and I try to start T.Y. 30 people found this helpful. schlieve I seem to have the same issue.

What kind of car is the Mercedes SL500?

The Mercedes-Benz SL500, part of the SL-Class of roadsters, is a two-door car classified as a luxury grand tourer. The SL500 comes with a variety of features, such as a retractable hardtop. This hardtop is operated by pulling up on a switch to open it, or pressing the switch down to close it. If you cannot get the

How do I reset the soft top on my Mercedes SL?

This is usually accomplished by having the cargo cover in place and closed. If it is open – the computer thinks the trunk doesn’t have room for the top so it will not operate. Your model of SL does not have the retractable top, but probably still has a similar type system.

Why is the top of my Mercedes SL not working?

On later model SL’s – both switches need to be depressed for the top to operate. This is usually accomplished by having the cargo cover in place and closed. If it is open – the computer thinks the trunk doesn’t have room for the top so it will not operate.

What makes a Mercedes Benz front end Shimmy?

These forces can be extreme and cause the rubber bushings to fatigue and crack causing a front-end vibration or shimmy. Signs of failure are common and are often accompanied with a “creaking” noise from the suspension. Other components such as wheel bearings, ball joints and sway bar links should be inspected at the same time.

What are the parts of a front end Assembly?

Depending on the vehicle, your front end assembly may include tie rod ends, idler arms, pitman arms, a rack and pinion, ball joints, and shocks or struts.

How can I tell if my Mercedes Benz sway bar is working?

There should be no movement vertically or laterally. Sway Bar Links – Visually inspect the links connecting the sway bar to the control arms. These may be rubber or may have a ball joint style connection. If your Mercedes Benz has rubber bushings, look for cracking or failure of the bushings.

How does the bleed work on a Mercedes Benz?

This way the pedal pusher can also keep an eye on the fluid level and top up as necessary , and the person opening and closing the bleed screws can verify that air has been completely removed.

Is there a special MB only tool for brake bleed?

I looked at the Alldata for brake bleeding : it shows for cars with ESP, they have to connect a special Hand Held Tool to the ’round plug’ and use the ESP system to push the fluid through. Is this a special MB only tool ? May be BobTerry can advice if we can jumper certain terminals to do the same thing instead of getting that tool ?

How to do the ABS brake bleed sequence?

Starting with the rear right, then left, passenger, driver last. The only thing you must watch is the reservoir, it is a two compartment one you can see easily the other not. If you don’t you will be in deep….. It has a separation wall inside make sure you overfill and kip it up while you bleed.

Is there a special procedure for bleeding ABS?

So what you are saying is there is no special procedure for bleeding ABS, just bleed them like the old non-ABS system. Nice to hear that. So what you are saying is there is no special procedure for bleeding ABS, just bleed them like the old non-ABS system. Nice to hear that. Click to expand… LOL. That is yes, if you don’t screw things up.

Are there any stores closing due to covid-19?

Canada Goose has withdrawn its long-term outlook because the “duration of COVID-19 disruptions remain uncertain.” Michael Kors owner Capri Holdings is closing all of its stores, which also include Versace and Jimmy Choo, in North America beginning March 18 until April 10. In Europe, all shops are closing from March 19 until April 10.

Can a bad starter motor cause a Mercedes Benz?

You could have a bad starter motor. Mercedes Benz recommends flushing your brake fluid every 2 years, here is how! If your car is pulling to one side you may have a bad brake caliper. Here is how to replace your leaking brake lines. If you brake pedal is sinking you may have a bad master cylinder.

Why does my Mercedes Benz hesitate to accelerate?

-Air filter and throttle body are clean. -I haven’t changed the MAF in the 2 years that I’ve owned the car, and i tried running the car with the MAF unplugged; the problem was the same except now the idle was constantly low and rough. The problem is slowly getting worse. I’m contemplating ordering a new MAF or maybe a set of new coils..

When did the Mercedes Benz 500SL come out?

For the U.S. market, the R129 was sold with two different DOHC inline-sixes, two different V-8s, and a V-12. Each model had its charms, but our favorite was the 500SL (a.k.a. the SL500 after Mercedes switched its naming scheme in 1994) with the M119 V-8. Sold between 1990 and 1998, this DOHC 5.0-liter was ultrahigh tech for its day.

What was the Mercedes Benz SL in 1990?

The R129-generation Mercedes-Benz SL debuted for the 1990 model year to tremendous pent-up demand. Its predecessor, the R107, had languished in production for 18 long years, and the new model was a quantum leap in design, engineering, safety, and performance.

-Air filter and throttle body are clean. -I haven’t changed the MAF in the 2 years that I’ve owned the car, and i tried running the car with the MAF unplugged; the problem was the same except now the idle was constantly low and rough. The problem is slowly getting worse. I’m contemplating ordering a new MAF or maybe a set of new coils..

Can a faulty ABS sensor cause the ESP system to be disabled?

Because the ESP system depends on the ABS system to function properly, the ESP system will also get disabled. A faulty ABS sensor could cause other issues as well such as Check Engine Light, car not moving when in Drive, speedometer not working.

Can a failed ABS sensor trigger the Bas light?

If you have an ABS sensor that has failed, it will also trigger the ABS, ESP, BAS light. Because the ESP system depends on the ABS system to function properly, the ESP system will also get disabled.

Is there a problem with rough idle when warm up?

So, once there’re visible signs of rough idling, trouableshoot the problem without causing any further delay. As reported by Car From Japan experts, most Makes getting this engine rough idle after warm up are: Though the problem is not common but drivers of the Makes had their car serviced at garages for Rough Idle When Warm.

Why does my car run rough after warm up?

But, (and here is the problem) once the engine starts to warm up a bit and the temperature needle starts to climb (gauge says 40) the revs suddenly drop off to around 500 from around 800 and the engine starts to tick over rough and run rough. Revving the engine hard doesn’t clear it.

What causes rough idle and low rpm at startup?

You start the engine cold and it will hardly run. It runs rough and idles very low and will even quit a few times. You may also notice that your ABS light comes on. After the engine warms up idle speed will increase and the engine may smooth out (although acceleration may have some hesitation until the engine gets real hot.

Are there shock absorbers in a Mercedes R129?

In the V12 Mercedes-Benz R129 cars, there are no conventional shock absorbers. Instead, there is a hydraulic cylinder and a hydraulic accumulator at each wheel. The suspension height can be adjusted by changing the amount of oil fed into the hydraulic cylinders. Oil is incompressible and this is where the hydraulic accumulator comes in.

How much is a 1994 Mercedes Benz SL 500 Roadster worth?

See Trade-in Value Used 1994 Mercedes-Benz SL-Class SL 500 Roadster 2D Edit OptionsMileage: 109,053 4.7 Consumer Write a review View Gallery For Sale Near You 10 Mercedes-Benz SL-Class vehicles in your area. Used 1996 Mercedes-Benz SL 500 $7,995 Speedy Car Sales Used 1996 Mercedes-Benz SL 500 $10,991 Ford Lincoln Fairfield Used 1996

What kind of motor does the Mercedes SL500 have?

1998 Mercedes-Benz SL500 Roadster The Mercedes-Benz SL-Class is a grand touring car manufactured by Mercedes Benz since 1954. The designation SL derives from… More GR Auto Gallery is offering this 1999 SL500 for your consideration. It is powered by a 5.5L AMG V8 motor which puts out plenty… More

How much is a 1990 Mercedes Benz 300SL worth?

If you would like to discuss your Hagerty Insurance policy, please call us at 877-922-9701. **Figure based on a stock 1990 Mercedes-Benz 300SL valued at $11,400 with OH rates with $100/300K liability/UM/UIM limits. Actual costs vary depending on the coverage selected, vehicle condition, state and other factors.

How much is Hagerty Insurance on a 1990 Mercedes Benz 300SL?

If you would like to discuss your Hagerty Insurance policy, please call us at 877-922-9701. **Figure based on a stock 1990 Mercedes-Benz 300SL valued at $8,200 with OH rates with $100/300K liability/UM/UIM limits. Actual costs vary depending on the coverage selected, vehicle condition, state and other factors.

What kind of suspension does a Mercedes 300SL have?

The new R129 design received a state-of-the-art adjustable sport-luxury suspension and an all-new chassis. Twin A-arm front and fully independent multi-link rear suspension, four-wheel disc brakes, and a complete unibody chassis defined the new SL.

The R129 version of the Mercedes-Benz SL is no exception. For the 1990 model year, Mercedes had prepared a replacement for the R107 design that had served the SL-Class since 1972. The new R129 design received a state-of-the-art adjustable sport-luxury suspension and an all-new chassis.

Are there any problems with the R129 SL?

Common R129 Reliability Problems Distributor Caps – Early R129’s such as the 300 and 500 suffer damp distributor caps that cause misfires and other gremlins. Wiring Loom – Excluding the M103 300 SL and the M104 300-24v SL, the wiring looms are biodegradable and will eventually break, which is not the cheapest of repairs.

Welcome to our Mercedes-Benz R129 Technical Articles section. We’ve gathered a vast collection of useful articles to help you perform many repairs and upgrades on your Mercedes-Benz. Save money by doing your own work and perform the repairs using the information we’ve provided here.

What to do if your Mercedes SL Class R129 is not charging?

An alternator that is not charging will eventually leave you stuck with a dead battery. Check your charging system. If your engine is running rough and misfiring you may need to change your cap, rotors and wires. If your valve cover gaskets are leaking we will show you how to replace them. Engine running lean/rough. Maybe you have a vacuum leak.

Check that lower control arm bushing. Uneven tire wear and unusual handling in turns can be caused by worn suspension links. Check your rear rearward upper link. A light clicking noise from your rear suspension over bumps can be the result of worn sway bar links.

What kind of fuses are in a 1998 SL500?

Electrical components such as lights, heated seats and radios all have fuses in your 1998 Mercedes-Benz SL500 5.0L V8. This free video shows you how to replace a blown interior fuse on a 1998 Mercedes-Benz SL500 5.0L V8 About Us Maintenance Parts & Tools Contact English SpanishFrench Search Home Mercedes-Benz SL500 1998

Where are the fuses in the SL R230?

SL R230 Fuse Box Locations in the engine bay on driver’s side in the engine bay on passenger’s side in the passenger compartment fuses box in the rear trunk

Where are the fuses located in a Mercedes Benz?

Some Mercedes-Benzs have multiple interior fuse boxes including in the trunk – the video above will show you where the interior fuse box of your 1998 SL500 is located. If your SL500 has many options like a sunroof, navigation, heated seats, etc, the more fuses it has.

What should I do about my Fuse Box?

Make sure to properly close the fuse box cover and lock the tabs properly. This is very important to avoid any moisture getting inside the fuse box. The fuse box panel has a seal that is designed to keep water and moisture out of the box.