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Mechanical Work

Mechanical Work

AIR CONDITIONING SYSTEM

German Car Experts

AIR CONDITIONING SYSTEM:

A perfect functionality of your car air conditioner system is mandatory in UAE, because of the weather conditions.

Symptoms that might indicate a damaged air conditioning compressor:

  • The most common symptom is that the A.C. is not blowing air as cold as it used to 
  • Loud or strange noises when the A.C is on 
  • Compressor clutch is not moving 
  • Leaks 

If your car air conditioner isn’t running efficiently, needs gas, or you haven’t had it serviced for a long time, please contact German Experts Service Center for an appointment. In German Experts we understand the importance of a good working A.C. system, we have the tools and technology to diagnose, identify and fix any problem related to this particular part of your car and of all the parts of the air conditioner system:

  • A.C. Condenser
  • A.C. Compressor
  • Air filter
  • Recharge Refrigerants
  • A.C. Blower motor
  • A.C. Evaporator
  • A.C. Accumulator
  • A.C. Resistors
  • A.C. Switches and Controls
  • A.C. Electrical Wiring and Relays
  • A.C. Seals, O-rings, and Hoses

All the listed parts offered, if cannot be repaired will be replaced with genuine parts as per the manufacture standards and specifications with warranty certificates for our work and also for the repaired A.C. part

Brands we are servicing for Air Conditioning System Repair:

BMW A.C. fixing, Mercedes A.C. fixing, Land Rover A.C. fixing, Porsche A.C. fixing, Audi A.C. fixing, Rolls Royce A.C. fixing, Ferrari A.C. fixing, Lamborghini A.C. Fixing, Mini Cooper A.C. Fixing, Jaguar A.C. fixing, Mclaren A.C. fixing, Volkswagen A.C. repair 

 

GEAR BOX REPAIR

German Car Experts

The GEAR BOX is the second element of the power train in an automobile. The gear box (transmission) change the speed and torque of vehicle according to the road and load condition.

If you feel any problem related to your car gear box, please don’t hesitate contacting or coming and asking for an inspection with one of our expert technicians.

SYMPTOMS INDICATING A DAMAGED GEARBOX:

  • Lack or late response. 
  • Transmission slipping. It can feel like you're driving in a certain gear and then it changes for no apparent reason. ...
  • Gear Box makes noises: whining, humming or clunking, noisy in neutral
  • Smells like its burning
  • Low or Leaking Transmission Fluid (Look for red fluid under your car to tell if you have a leak.)
  • Check engine light is on
  • Lack or Late Response. 
  • Diagnosis process in German Experts Service Center:

One of our technicians will test drive the vehicle and check if the gear has a fault or if it’s not shifting correctly.• Next step - will check the fault by diagnostic tester, check gearbox control unit and check gearbox oil condition.
• If needed, the gearbox and the overall gear clutch will be removed.
• According to the problem, the gearbox control unit or valve body will be replaced or repaired as per the manufacture standards and specifications.
• Then, we will top up the gearbox oil and adapt it with diagnostic tester to relearn gear shifting.

Gear Box Repair; Gear box refurbishment; Gear Box Replacement, car transmission repair, car transmission refurbishment, car transmission replacement.

This action might save you from a lot of expenses, increase the life of your car and protect your own safety. If you experience any of this transmission issues don’t hesitate in giving us a call and do an appointment.

SUSPENSION SERVICE

German Car Experts

SUSPENSION REPAIR

Usually when we think of an automobile performance we tend to think of the engine power (horsepower) and zero- to-60 acceleration. All of this are useless if the car can’t be controlled.
Suspension system is the next in line when we talk about a vehicle power, his role being to maximize the friction between the tires and the road surface, to ensure the passengers comfort and offer stability.

THE PARTS OF THE SUSPENSION ARE: 

  • Shock and Struts (Shock absorbers and Struts)
  • Coil Springs (Coil Spring Sets)
  • Leaf Springs (Leaf Springs and Bushing)
  • Air Suspension (Air Springs, Shocks, Air Lines)
  • Control Arms (Arm Assemblies)
  • Sway Bars (Sway Bar Bushing, end Links)
  • Ball Joints (Upper and Lower Ball joints)
  • Torsion Bars (Torsion Bar sets and Mounting Sets)
  • Panhard Bars (Track Bars, Watts Links, Bushings)
  • Shock and Strut Mounts (Upper Strut Mounts, Shock Boots)
  • Dampers and Stabilizers (Twin Tube and Monotube)
  • Knuckles and Spindles (Spindle Nuts, Washer, Seals)
  • Steering Rack and Pinion (Rack and Pinion Units, Bearings)
  • Self-Leveling Sensors (Self Leveling Units and Relays)
  • Suspension Bushing (Bushing Kits and bumpers)
  • Alignment Kits (Camber Plates, Toe Kits, Bolts)

German Experts technicians not only understand the importance of a car suspension but also are highly trained and experienced in solving any possible related issue.

SIGNS THAT MIGHT INDICATE THAT YOU HAVE A PROBLEM WITH YOUR CAR SUSPENSION: 

  • Your vehicle dips or “nose dives” when stopping.
  • Your vehicle pulls to one side when driving.
  • Your car is visibly lower in one corner than the rest of the vehicle.
  • The vehicle feels as though it is “pulling” or “drifting” when turning corners
  • The car continues to bounce after hitting a bump or pothole in the road.
  • The shocks appear to be oily or damaged
  • The vehicle rides roughly.

THE DIAGNOSIS AND REPAIRING PROCESS OF THE CAR SUSPENSION: 

  •  One of the technicians will test drives the vehicle to check if any issue can be felt
  • Then, suspension level, arm bushes, shock absorbers from front and rear will together with all the other parts of the suspension, will be checked.
  •  If needed German Experts technician will replace the necessary parts and will perform the suspension calibration and wheel alignment.

The suspension system is one of the most important aspects to your comfort and safety when you are driving. If you suspect that there is a problem with your vehicles suspension system, schedule an appointment and bring it in right away. Your safety and the safety of others depends on making sure that suspension system stays in good working condition.

RADIATOR SERVICES

German Car Experts

Radiator is the part of the car that is responsible for preventing the engine from overheating. When a vehicle’s engine is in use, it puts off a lot of heat and friction. With the help of coolant, the radiator helps to keep the engine running at a temperature that is healthy for the vehicle.

WHAT ARE THE MOST COMMON RADIATOR PROBLEMS: 

  • Not enough coolant. Your vehicle needs to maintain a certain amount of coolant, or the engine can overheat. Check coolant levels at every oil change to avoid having them get low. If you notice a sweet smell, almost syrup like, coming from your vehicle, it may indicate coolant is leaking.
  • Failed thermostat. Though not technically a part of the radiator itself, the thermostat is often the culprit behind an overheating vehicle.
  • Leaking radiator hose. These are the most common source for leaks in your cooling system. The radiator hoses connect to the engine and allow coolant to flow between the two. Radiator hoses can fall victim to wear and need to be periodically replaced.
  • Radiator Leak. When the radiator itself leaks, the source can be harder to find than when it is a leaking hose. Steam or bubbles coming from the radiator may point to the location of the leak. These repairs are tricky and should be handled by a professional.
  • Broken water pump. This is a fairly common problem. The pump moves the coolant throughout the engine to regulate the engine temperature. When the water pump fails, the water will fail to circulate properly and your car will overheat.
  • Broken radiator fan. Most modern vehicles have an electric fan that pulls air through the radiator to help keep the car cool at low and idle speeds. If your car is doing well on the freeway, but it overheats in traffic or at idle, then your radiator fan may be broken.

When you bring your vehicle in for a coolant system/radiator check-up, there are several tests performed to make sure that everything is ok:

  • Pressure test on the System- to make sure the system does not leak under pressure
  • Thermostat Test- to make sure it is regulating the coolant flow properly
  • Pressure Test on the Radiator Cap- to ensure that it will release at the proper pressure
  • Fan Test- make sure the engine fan and all other fans are working properly

ENGINE COOLING SYSTEM

German Car Experts

Inside the car engine, fuel is burning creating a very high temperature – part of the heat goes out from the exhaust system and part of it soaks into the engine heating it up. The best temperature for a good function of the engine is 93 degrees, temperature which allows the combustion chamber to vaporize the fuel reducing emissions and providing better combustion, oil that lubricates the engine has a lower viscosity so the engine wastes less power and the metal parts wear less.
THE MAIN COMPONENTS OF THE ENGINE COOLING SYSTEM ARE:
  • Thermostat
  • Upper hose
  • Radiator
  • Fan
  • Water pump
  • Transmission cooler
  • Lower hose
  • Reserve tank
  • Heater core
  • Heater hoses
  • Pressure cap
THERE ARE 2 TYPES OF ENGINE COOLING SYSTEM 
  • Air Cooling System– very few modern cars are using nowadays the air cooling system which is represented by a fan that blows air on the engine aluminum fins (engines with aluminum fins are found only together with the air cooling system) taking the heat away from the cylinder and transferring it to the air.
  • Liquid Cooling System – means that circulates a fluid through pipes and passing it in the engine, cooling it while absorbs the heat. Once the heated fluid leaves the engine, it passes through a radiator or heat exchanger transferring the heat from the fluid to the air.
SYMPTOMS OF A DAMAGED COOLING SYSTEM
  • Car engine is overheating
  • Coolant is disappearing
  • The car is shutting off while driving
  • Steam is coming from the radiator
  • Your AC won’t turn on or off
Expert advice: - Check antifreeze coolant level periodically. Only use a 50/50 coolant and distillated or deionized water.
  • Bring your car regularly for an inspection to check if hoses or tighten hose clamps are curved or change their initial shape.
  • Inspect belts periodically. Worn or glazed belts should be replaced. (ask our expert to show you how you can do the periodically check-up by your own)
  • If there any problems with a spare part of the cooling system, that part should be replaced with an original spare part and the recommendations and specifications of the manufacture should be followed in detail.
  • Always check the level of coolant (caution: never open the radiator pressure cap if the engine is hot!)

 

TRANSFER CASE

German Car Experts

Transfer Case or transfer box it’s a gear system that divides the power between the front and rear axles of the four-wheels-drive, all-wheel-drive, and other multiple powered axle vehicles.

It is mounted at the end of the transmission and splits engine power that it’s sent to the front and rear drive shafts. For some of the four-wheel vehicles the transfer case is at the command of the driver. Which means that the driver can use the option of engaging the transfer case in two-wheel drive mode or four-wheels drive mode. Other cars are having a permanent all-wheel drive mode and can’t be switched.

THERE ARE 3 TYPES OF TRANSFER CASES: 

Part-time 4 WD
Full-time 4 WD
Active 4 WD

There are a variety of transfer boxes with a variety of names and levels of performance, and are using electronic, computerized or mechanical systems to adjust the amount of power sent to axles according to the wheel slip.

Part time 4WD is the most common transfer case and allows you to operate the vehicle in four-wheel-drive high range 4(Hi) and low range (4Lo) or two-wheel-drive

SPECIFICATIONS OF THE PART-TIME 4WD TRANSFER CASE (TRANSFER BOX) 

  • Offers smoother operation on pavement
  • Fuel Economy because the front driveshaft and axle can be cut-off from power.
  • Are generally the strongest transfer cases being designed for real off-road use
  • Gives the driver the option of choosing the type of operation (on or off) according to the road condition.

Specifications of the Permanent or full-time 4WD:

It’s the simplest type of transfer case it send power to the front and rear axle all the time.
Some are coming with 4Hi lock position that locks differential to improve traction on slippery pavements.

Specifications of the Active 4WD:

It’s the easiest type of transfer box being active at all the times
It acts as the part-time transfer case and permanent transfer case according the road surface.
It’s operating all the 4 wheels at a time

TRANSFER CASE MAINTENANCE:

The transfer case is serviced by periodically changing and replacing the fluids as per your owner’s manual recommendations. Usually every 30.000 miles the fluids should be drained and replaced with fresh ones, mostly for the cars use often the four-wheel function. . Transfer cases can get filled with gear oil, automatic transmission fluid or other fluids.

SYMPTOMS OF A DAMAGED TRANSFER CASE or TRANSFER BOX:

Usually it gets difficult to shift gears or drive the car. The symptoms of a failure in the transfer box can vary, depending on type of the transfer box your car has and the problem but the most encountered ones are:

  • Grinding noise coming from underneath the vehicle
  • Vehicle jumps in and out of four-wheel drive
  • Difficulty shifting gears
  • Fluid leak
  • Transmission warning light.
  • Car doesn’t accelerate fast or move at all.

Specialist advice: It is important to check the level and the quality of the transfer box fluid every time you change the car oil and filters, also should be checked if the transfer box has leaks or any damages as the fluid might leak from the output shaft seals, input shaft seal, case gaskets and drain plug gaskets and lead to a bigger damaged.

Also if you are thinking of purchasing an aftermarket vehicle with a transfer case it’s better to have a certified expert inspect the case exterior, the fluid condition and test drive the car to make sure that everything is fine.

PRE-PURCHASE CAR INSPECTION

German Car Experts

German Experts Service Center is highly recommending our customers before investing in any pre-owned car to carry a pre-purchase inspection to secure your safety and your money.

We have seen a lot of situations where car owners brought the car in German Experts Service Center for the periodical service or for our German Experts Car Warranty and at a closer look our car mechanics discovered huge issues and hard damaged vehicles that required lots of money and hard work to comply with the safety rules and be driven normally.

Below we have listed a series of have to check points when buying a car and after our inspection we will provide you with a report that will accurately indicate the real condition of the car you want to buy.

Not buying but selling a vehicle? Increase or keep the real price of the car by providing a report of the car you want to sell and we can guarantee that this will assure a fast car selling without having to negotiate your price.

 

QUALITY CONTROL INSPECTION

UNDERHOOD

UNDERBODY & CHASIS CHECK

ENGINE

1. Windscreen Washer Fluid Level

28. Fluid Level Condition - engine oil, transmission oil, differential oil, coolant, washer fluid, brake fluid, power steering fluid 

41. Inner Fender Shields Condition 

52. Hose Clamps Condition 

2. Coolant Level 

29. Drive Belt Age/Condition- alternator, water pump, A/C compressor, power steering pump, timing belt

42. Tie Rods and Suspension Mounts Condition 

53. Battery lifetime (more than 4 years?)

3.  Brake Fluid Level 

30. Charging System - voltage

43. Prake Pads and Rotors Condition 

54. Battery Clamps Condition 

4. Power Steering Fluid Level 

31.Throttle Position Switch - condition and adjustment 

44. Shock Absorbers Condition 

55.  Wires Condition 

5. Fan Belt Tension + Condition 

32. Engine  - visual, mounts, valve clearance, compression, noise, freeze plugs, oil/coolant leaks

45. Engine signs of leaks or fluid 

56. Air Filter Condition 

6. Cleanliness of Engine Compartment 

33. Intake System - air filter, throttle plate, thermostatic control, intake control, manifold gasket

46. Bent or dented metal 

57. Brake reservoir Condition 

7. Tyre Pressure/tread/damage

34. Fuel Delivery System - fuel filter, tank filter, hoses, lines, fuel rails, injectors

47. Radiator signs of coolant 

58. Power Steering Pump Condition and Oil Level 

8. Front/Rear Brake Pads Condition 

35. Ignition System – primary pattern, secondary pattern, timing, spark plugs, spark plugs wires

48. Ground of the car - signs of oil or fluid

59. Fluid Level 

9. Wipers

 36. Control System – check engine light, trouble codes, sensors, connections/wiring

49. Transmission and differential leaks 

 

10. Headlight + Adjustment 

37. Air Conditioning – condenser, evaporator, compressor, hoses/lines, hardware attach, refrigerant charge

 

POWERTRAIN STARTUP 

 

11. Parking Brake 

38. Wheel Bearings – front, rear

50. Strange Noises 

 

12. Interior Switches 

39. Steering and Suspension – steering gear, steering pump, tie rods, ball joints, control arms, bushing, springs, shocks/struts

51. Exhaust Leak 

 

13. Exhaust System

40. Brakes – master cylinder, power booster, calipers, wheel/cylinders, lines/hoses, pads/linings, rotors/drums, parking brake, anti-lock system

 

 

14. Underneath Damage 

                  

 

 

15. Power Steering -Function 

 

 

 

16. Steering Wheel Centered / Pulling 

 

 

 

17. Air Suspension 

 

 

 

18. Differential locks, all-wheel drive 

 

 

 

19. Unusual noises/vibrations 

 

 

 

20. A.C. 

 

 

 

21. ABS/ESP

 

 

 

22. Clutch Jerk 

 

 

 

23. Gear Change 

 

 

 

24. Body Damage as per Inspection Sheet 

 

 

 

25. Trim Pieces Loose or Missing 

 

 

 

26. Small Rust Spots 

 

 

 

27.  Tires Condition 

 

 

 

German Expert Service Center, BMW car inspection, Audi car inspection, Mercedes Benz car inspection, Mini Cooper car inspection, Land Rover car inspection, Bentley car inspection, Ferrari car inspection, Lamborghini car inspection, Maserati car inspection, McLaren car inspection, Porsche car inspection, Jaguar car inspection 

CAR ENGINE REFURBISHMENT

German Car Experts

ENGINE REPAIR 


Taking care of your car engine, doing a periodical maintenance and whenever necessary fixing any small problem that might appear will increase the life of your vehicle.

The engine, is the heart of the car and in German Experts Service Center  we proud ourselves with skilled technicians with years of experience in diagnosing and repairing this specifically part of your car and we guarantee you'll get no greater service or advice from any other place.


WHAT ARE THE SYMPTOMS OF A DAMAGED ENGINE?

  • Any strange sounds in the engine
  • Smoke belching
  • Low oil level
  • Low oil pressure
  • Sudden uncontrolled jerking

HOW ARE WE CHECKING AND DIAGNOSING YOUR CAR ENGINE?

We will use an original and high-end diagnosis tester, checking combustion chamber & engine oil consumption while we complete a visual inspection of all engine components.

• Dismantle and overhaul engine - Test each part individually including the engine block, cylinder head, pistons, piston rings, crankshaft & camshafts with bearings. These are the main components of your engine.
• After diagnosis, if needed we will replace or refurbish all the damaged parts, using original tools, as per the manufacturer standards and specifications

WHAT ARE THE SERVICES PERFORMED BY GERMAN EXPERTS SERVICE CENTER?

  • Replacement of engine oil and oil filter
  • Changing of engine air filter
  • Changing of spark plugs
  • Replacement of accessory belt
  • Inspection/repair/replacement of throttle system and battery
  • Engine refurbishment
  • Changing engine

BRAKE SYSTEM

German Car Experts

The brakes of your car are a main important part when it comes to your safety and you shouldn’t never neglect any small sign of brakes malfunction that might appear while driving your vehicle.

When we talk about car brakes and safety we have 2 main elements that will prevent an unnecessary and never desired incident:

1. The quality of the brake pads used – a cheap quality can lead in slower stopping and much faster wearing

2. The mechanic that works on your brakes. Having a proper diagnostic leads to a proper repair done right the first time. Less experienced mechanics may recommend too much or not enough.

SIGNS OF A DAMAGED BRAKE SYSTEM:

  • Brake pedals seem to be spongy or press farther to the floor than usual
  • Your vehicle pulls to the right or left when you brake
  • Unusual noises or vibrations occurring during braking
  • Long reaction time of stopping.

If you would like to find a reliable brake service center in Abu Dhabi, look no further. In German Experts we strive to keep our prices as affordable as possible without sacrificing your safety, longevity and peace of mind working always as per the manufacturer standards and specifications with 100% genuine spare parts, we execute the following services for your car brake:

  • Replace Brake disc and pads
  • Antilock Brake System (ABS)
  • Adaptive Brake System (ABR)
  • Brake Assist System
  • Electronic Stability Program (ESP)
  • Acceleration Skid System (ASR)